Search for Pair Production of a New b
0Quark that Decays into a Z Boson
and a Bottom Quark with the ATLAS Detector
G. Aad et al.* (ATLAS Collaboration)
(Received 5 April 2012; published 16 August 2012)
A search is reported for the pair production of a new quarkb0with at least oneb0decaying to aZ boson and a bottom quark. The data, corresponding to2:0 fb1of integrated luminosity, were collected frompp collisions atpffiffiffis¼ 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. Using events with ab-tagged jet and a Z boson reconstructed from opposite-charge electrons, the mass distribution of large transverse momentumb0candidates is tested for an enhancement. No evidence for ab0 signal is detected in the observed mass distribution, resulting in the exclusion at a 95% confidence level ofb0 quarks with massesmb0< 400 GeV that decay entirely via b0! Z þ b. In the case of a vectorlike singlet b0 mixing solely with the third standard model generation, massesm
b0< 358 GeV are excluded.
DOI:10.1103/PhysRevLett.109.071801 PACS numbers: 14.65.Jk, 12.60.i, 13.85.Rm, 14.65.Fy
The matter sector of the standard model (SM) consists of three generations of chiral fermions, with each generation containing a quark doublet and a lepton doublet. A natural question is whether quarks and leptons exist beyond the third generation [1]. In this Letter, we present a search for the pair production of a new quark with electric charge 1=3, denoted b0, using data collected by the ATLAS experiment at the Large Hadron Collider. New quarks appear in a variety of models that address shortcomings of the SM [1–5]. In addition to signaling a richer matter content at high energy, their existence would impact lower-scale physics, such as altering Higgs boson (H) phenome-nology [6], and providing new sources of CP violation potentially sufficient to generate the baryon asymmetry in the Universe [7].
Several collaborations have previously searched for a chiral b0. A search by D0 [8] for the decay b0 ! þ b excludesb0quarks with masses belowmZþmb¼ 96 GeV. CDF [9] searches for the decay b0! Z þ b exclude masses below mWþ mt¼ 256 GeV. These limits apply to promptb0 decays. CDF and D0 have also searched for nonprompt b0 ! Z þ b decays [10], excluding, for ex-ample, b0 masses below 180 GeV for c ¼ 20 cm [11]. More recently, CDF [12], CMS [13], and ATLAS [14] have searched for the prompt charged-current decayb0! W þt. This decay mode is dominant for a chiralb0with mass in excess of mWþ mt, as the neutral-current modes only occur through loop diagrams [1]. The ATLAS result ex-cludes chiralb0quarks with masses below 480 GeV.
Extensions to the SM often propose new quarks trans-forming as vectorlike representations of the electroweak gauge groups [2–5]. The decay of a vectorlike b0 to a Z boson and a bottom quark is a tree-level process with a branching ratio comparable to that of the decayb0! W þt. In particular, the branching ratiosWt:Zb:Hb approach the proportion 2:1:1 in the limit of a large b0 mass as a con-sequence of the Goldstone boson equivalence theorem [2,5]. Furthermore, if a signal were observed in the WtWt final state, a search for a resonant Z þ b signal would aid in establishing the charge of the new quark. In light of these observations, this search explores the Z þ b jet final state for the presence of a b0quark.
The ATLAS detector [15] consists of particle-tracking detectors, electromagnetic and hadronic calorimeters, and a muon spectrometer. At small radii transverse to the beam line, the inner tracking system utilizes fine-granularity pixel and microstrip detectors designed to provide precision track impact parameter and secondary vertex measurements. These silicon-based detectors cover the pseudorapidity [16] rangejj < 2:5. A gas-filled straw tube tracker com-plements the silicon tracker at larger radii. The tracking detectors are immersed in a 2 T magnetic field produced by a thin superconducting solenoid located in the same cryostat as the barrel electromagnetic (EM) calorimeter. The EM calorimeters employ lead absorbers and utilize liquid argon as the active medium. The barrel EM calorimeter covers jj < 1:5, and the end-cap EM calorimeters cover 1:4 < jj < 3:2. Hadronic calorimetry in the region jj < 1:7 is achieved using steel absorbers and scintillating tiles as the active medium. Liquid argon calorimetry with copper absorbers is employed in the hadronic end-cap calorime-ters, which cover the region1:5 < jj < 3:2.
The search for the decay b0 ! Z þ b is performed in the final state with the Z boson decaying to an electron-positron pair (eþe) using a dataset collected in 2011 corresponding to an integrated luminosity of
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1:98 0:07 fb1[17]. The selected events were recorded with a single-electron trigger that is over 95% efficient for reconstructed electrons [18] with momentum transverse to the beam direction, pT, exceeding 25 GeV. At least two opposite-charge electron candidates are required, each sat-isfyingpT> 25 GeV and reconstructed in the pseudora-pidity region jj < 2:47, excluding the barrel to end-cap calorimeter transition region,1:37 < jj < 1:52. In addi-tion, the electron candidates satisfy medium quality re-quirements [18] on the reconstructed track and properties of the electromagnetic shower. The two opposite-charge electron candidates yielding an invariant mass mee that satisfies jmee mZj < 15 GeV and is closest to the Z boson mass define the Z candidate. Approximately 475 000 events pass theZ ! eþe selection criteria.
Jets are reconstructed using the anti-ktclustering algo-rithm [19] with a distance parameter of 0.4. The inputs to the algorithm are three-dimensional clusters formed from calorimeter energy deposits. Jets are calibrated usingpT -and -dependent factors determined from simulation and validated with data [20]. Jets are rejected if they do not satisfy quality criteria to suppress noise and noncolli-sion backgrounds, as are jets whose axis is withinR ¼
ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi ðÞ2þ ðÞ2 p
¼ 0:5 of a reconstructed electron asso-ciated with the Z candidate. A requirement is made to ensure at least 75% of the totalpT of all tracks associated with the jet be attributed to tracks also associated with the selected pp collision vertex [21]. Finally, jets in this analysis are restricted to the region covered by the tracking detectors, jj < 2:5, and satisfy pT > 25 GeV. Approximately 81 000 events pass the Z ! eþe candi-date selection and contain at least one selected jet.
The SM production ofZ bosons in association with jets accounts for most events passing theZþ 1 jet selection. Two leading-order Monte Carlo (MC) generators,ALPGEN [22] andSHERPA[23], are used to assess the background arising from this process, withALPGENproviding the base-line prediction. A description of the generation of these samples, in particular, in regard to differences between
ALPGENandSHERPAin the modeling ofZ boson production
in association with b jets, is detailed in Ref. [24]. The predictions of both are normalized such that the inclusiveZ boson cross section is equal to a next-to-next-to-leading-order (NNLO) calculation [25]. All MC samples fully simulate the ATLAS detector [26] and are reconstructed with the same algorithms as those applied to data. The Z þ bottom background category comprises simulated Z þ jetðsÞ events in which a generated pT > 5 GeV bottom quark is matched to a selected reconstructed jet. Similarly, events with a jet matched to a charm quark, but not a bottom quark, constitute the Z þ charm category. In the Z þ light category, none of the selected jets are matched to a bottom or charm quark.
Additional SM backgrounds modeled with MC events include top quark pair production (tt), single top
production, heavy vector boson pair (diboson) production, Zð! Þ þ jetðsÞ events, and Wð! eÞ þ jetðsÞ events. Processes with a top quark are simulated with MC@NLO [27,28]. The tt cross section used is the HATHOR [29] approximate NNLO value, whileMC@NLO[28] values are used for the single top processes.HERWIG[30] models the contribution of diboson events, with the cross sections set by the MCFM [31] NLO predictions. The remaining W=Z þ jetðsÞ backgrounds are simulated with ALPGEN, and normalized using single vector boson production NNLO cross sections [25]. The multijet background is estimated using a data sample with both electron candidates passing loose criteria [18] but failing the slightly tighter medium criteria. This sample is normalized to the difference in the inclusive Z sample between the data and all other backgrounds in the region50 < mee< 65 GeV. The small single top, diboson,Z ! , W ! e, and multijet contri-butions are combined and denoted Other SM.
Figure 1presents the eþe invariant mass distribution for events passing theZþ 1 jet selection, before impos-ing thejmee mZj < 15 GeV requirement, together with the SM prediction. The observed and predicted number of events are listed in TableIfor this and two other stages of the event selection. Most events passing the Zþ 1 jet selection arise from the Z þ light category. The appre-ciable lifetime of theb hadron originating from the bottom quark in the decayb0! Z þ b provides a means to reduce this background source. Ab jet tagging algorithm referred to as IP3D þ SV1 [32] is utilized to select events with at
Events / 5 GeV 10 2 10 3 10 4 10 s=7TeV) Data 2011 ( Z+light Z+charm Z+bottom t t Other SM ATLAS -1 L dt = 2.0 fb
∫
[GeV] ee m 50 100 150 200 250 300 350 Data / Prediction 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8FIG. 1 (color online). eþe invariant mass distribution for events passing the Zþ 1 jet selection, before imposing the jmee mZj < 15 GeV requirement. The predicted contributions
of the SM background sources are shown stacked. The lower panel shows the ratio of the data to the SM prediction, and the solid band denotes the systematic uncertainty on the SM prediction.
least oneb jet from the Zþ 1 jet sample. The discrimi-nant combines two likelihood variables based on the tracks associated with a jet. The first employs the longitudinal and transverse track impact parameters, while the second uti-lizes properties of a reconstructed secondary vertex. In a simulated tt sample, the requirement on the discriminant defining ab jet is 60% efficient for jets with a b hadron, and yields a light flavor jet rejection rate of 300 [32].
A total of 3466 events satisfy theZþ 1 b jet selection. Figure2presents theeþe invariant mass distribution in this sample and the SM prediction, before imposing the jmee mZj < 15 GeV requirement. The accurate model-ing of the mass distribution for values beyond the Z boson mass supports the prediction of tt and Other SM
background events. Within the window around theZ boson mass, ALPGENandSHERPAagree to within 1% and 7% in the prediction of the number ofZ þ light and Z þ charm events, respectively. However, ALPGEN and SHERPA dis-agree in the prediction of the Z þ bottom contribution, a fact previously reported in an ATLAS cross section mea-surement ofZ bosons produced in association with b jets using a smaller dataset [24]. The ALPGEN and SHERPA Z þ bottom predictions are scaled to account for the dif-ference between data and all other predicted backgrounds in a subsample of theZþ 1 b jet sample that contains events failing the requirement discussed below on the transverse momentum of the b0 candidate. The scale fac-tors are consistent with those measured in Ref. [24], and the invariant mass distribution of secondary vertex tracks is used to confirm the validity of the resulting prediction for the flavor composition in theZþ 1 b jet sample [24].
Simulated b0b0 events are generated for a range of b0 masses usingMADGRAPH [33] with the G4LHC extension [6].PYTHIA[34] performs fragmentation and hadronization of the parton-level events. The signal cross sections are obtained withHATHOR[29], and vary from 80 pb to 30 fb over the rangemb0 ¼ 200–700 GeV. In each sample, one b0 decays in the mode b0! Z þ b, with the Z boson decaying via Z ! eþe. Two separate samples are pro-duced for each mass value, with the other b0 decaying either via b0! Z þ b or b0! W þ t, and with all decay modes of the Z and W bosons allowed. The factor ¼ 2 BRðb0! ZbÞ BRðb0! ZbÞ2characterizes the frac-tion of signal events with at least one b0! Z þ b decay as a function of the branching ratio. The case ¼ 1 is equivalent to previous measurements [9] which assumed BRðb0 ! ZbÞ ¼ 1. The case of a vectorlike singlet (VLS) mixing solely with the third SM generation is also consid-ered by computing as a function of the b0mass [5]. Over the range mb0 ¼ 200–700 GeV, varies from 0.9 to 0.5. A SM Higgs of mass 125 GeV is assumed.
TABLE I. Number of predicted and observed events at three stages in the event selection. The contributions from SM backgrounds are shown individually, as well as combined into the total SM prediction. The uncertainties on the predicted number of events combine all sources of uncertainty. The number of expected signal events is also listed for two representativeb0masses in the case where the branching ratioBRðb0! ZbÞ ¼ 1.
Source Zþ 1 jet Zþ 1 b jet pTðZbÞ > 150 GeV
Z þ light 74 400 7300 590 140 19 7 Z þ charm 5340 520 870 210 18 7 Z þ bottom 2540 250 1710 270 52 17 tt 320 40 220 40 20 4 Other SM 1010 280 70 20 1:6 0:4 Total SM 83 600 8100 3460 580 110 30 Data 80 519 3466 100 mb0¼ 350 GeV 110 12 93 11 55 7 mb0¼ 450 GeV 27 3 20 2 14 2 Events / 5 GeV 1 10 2 10 3 10 Data 2011 ( s=7TeV) Z+light Z+charm Z+bottom t t Other SM ATLAS -1 L dt = 2.0 fb
∫
[GeV] ee m 50 100 150 200 250 300 350 Data / Prediction 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8FIG. 2 (color online). eþe invariant mass distribution for events passing theZþ 1 b jet selection, before imposing the jmee mZj < 15 GeV requirement.
Theb0 candidate is formed from theeþe pair and the highestpT b jet. The mass of the b0 candidate,mðZbÞ, is the discriminant distinguishing the background-only and signal-plus-background hypotheses. Inb0pair production, the new quarks are typically produced with large transverse momentum,pTðZbÞ. Therefore, a pTðZbÞ > 150 GeV re-quirement is applied to increase the signal sensitivity. Figure3presents the pTðZbÞ distribution for data and the predicted SM backgrounds. Additionally, the signal distri-bution is overlaid for ab0 mass of 350 GeV, assuming the VLS scenario value ¼ 0:63, and for a mass of 450 GeV, assuming ¼ 1.
The fraction of signal events passing all requirements varies from 7% to 43% between mb0 ¼ 200–700 GeV, assuming ¼ 1, with the efficiency to pass the minimum pTðZbÞ requirement contributing most to the degree of variation. The requirementpTðZbÞ > 150 GeV was deter-mined by assessing the signal sensitivity for different minimum pTðZbÞ values, as quantified by the expected cross section exclusion limit. The limit is computed using a binned Poisson likelihood ratio test [35] of the mðZbÞ distribution for different mb0 hypotheses. Pseudoexperiments are generated according to the background-only and signal-plus-background hypotheses, and incorporate the impact of systematic uncertainties. The cross section limit is evaluated using the CLs modified frequentist approach [35].
The impact of each systematic uncertainty on the normalization and shape of the mðZbÞ distribution is as-sessed for each SM background source and the expectedb0 signal. The fractional uncertainty on the total number of
background events passing thepTðZbÞ>150 GeV require-ment is 27%. Significant contributions arise from uncer-tainties in the pTðZbÞ distribution shape in Z þ jetðsÞ events. Such sources of uncertainty include the renormal-ization and factorrenormal-ization scale choice (14%, evaluated using MCFM [36]), shape differences observed between
ALPGEN andSHERPA (12%), and variations in the degree
of initial and final state QCD radiation (9%). The uncer-tainty in the efficiency of the b-tagging requirement con-tributes an additional 12%. Other sources of uncertainty contributing at the level of 6% or less include the jet energy scale [20], parton distribution functions (PDF), MC sample sizes, electron identification efficiency,Z boson cross sec-tion, luminosity, b jet mistag rate, tt cross section, jet energy resolution, trigger efficiency, and the Other SM event yield. Most of the above uncertainties, with the notable exception of the pTðZbÞ modeling uncertainties in Z þ jetðsÞ events, contribute to the total uncertainty on the signal normalization, which varies between 11% and 14% depending on theb0mass.
Figure4presents theb0candidate mass distribution after requiringpTðZbÞ > 150 GeV and the predicted SM back-ground. The distributions for the signal scenarios depicted in Fig. 3 are shown overlaid. The data are in agreement with the SM prediction over the full range ofmðZbÞ values. In the absence of evidence of an enhancement, 95% con-fidence level (C.L.) cross section exclusion limits are de-rived. Figure 5 presents the expected and observed cross section limits as a function of mb0, computed under the assumption ¼ 1. The expected cross section limit was checked to be stable to within 15% over the full mass range considered using the signal samples in which oneb0quark
β
∫
FIG. 3 (color online). Transverse momentum distribution of the b0candidate in events passing the Zþ 1 b jet selection. The predicted contributions of the SM background sources are stacked, while the distributions for the two signal scenarios described in the text are overlaid.
β
∫
FIG. 4 (color online). Mass distribution of theb0candidate in events passing the Zþ 1 b jet selection and satisfying pTðZbÞ > 150 GeV. The highest mass bin also includes the
decays viab0! Zþb and the other decays via b0! W þt. The approximate NNLO b0b0 cross section prediction is shown multiplied by ¼ 1, as well as by the VLS value, with the shaded region representing the total uncertainty arising from PDF uncertainties and the factorization and renormalization scale choice. From the intersection of the observed cross section limit and the theoretical prediction, b0 quarks with masses mb0< 400 GeV decaying entirely via b0! Z þ b are excluded at 95% C.L., representing a significant improvement with respect to the previous best limit of 268 GeV [9]. In the case of a vectorlike singlet b0 mixing solely with the third SM generation, masses mb0< 358 GeV are excluded.
In conclusion, a search with2:0 fb1of ATLAS data is presented forb0quark pair production, with at least oneb0 decaying to a Z boson and a bottom quark. This decay mode is particularly relevant in the context of vectorlike quarks and is an essential complement to searches in the mode with bothb0decaying to aW boson and a top quark. No evidence for ab0is observed in theZ þ b jet final state, and new limits are derived on the mass of a b0 quark decaying viab0! Z þ b.
We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and
VSC CR, Czech Republic; DNRF, DNSRC and
Lundbeck Foundation, Denmark; EPLANET and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU,
France; GNAS, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular, from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwide.
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Y. Bai,32aD. C. Bailey,157T. Bain,157J. T. Baines,128O. K. Baker,174M. D. Baker,24S. Baker,76E. Banas,38 P. Banerjee,92Sw. Banerjee,171D. Banfi,29A. Bangert,149V. Bansal,168H. S. Bansil,17L. Barak,170S. P. Baranov,93 A. Barashkou,63A. Barbaro Galtieri,14T. Barber,47E. L. Barberio,85D. Barberis,49a,49bM. Barbero,20D. Y. Bardin,63 T. Barillari,98M. Barisonzi,173T. Barklow,142N. Barlow,27B. M. Barnett,128R. M. Barnett,14A. Baroncelli,133a
G. Barone,48A. J. Barr,117F. Barreiro,79J. Barreiro Guimara˜es da Costa,56P. Barrillon,114R. Bartoldus,142 A. E. Barton,70V. Bartsch,148R. L. Bates,52L. Batkova,143aJ. R. Batley,27A. Battaglia,16M. Battistin,29F. Bauer,135 H. S. Bawa,142,fS. Beale,97T. Beau,77P. H. Beauchemin,160R. Beccherle,49aP. Bechtle,20H. P. Beck,16S. Becker,97 M. Beckingham,137K. H. Becks,173A. J. Beddall,18cA. Beddall,18cS. Bedikian,174V. A. Bednyakov,63C. P. Bee,82
M. Begel,24S. Behar Harpaz,151P. K. Behera,61M. Beimforde,98C. Belanger-Champagne,84P. J. Bell,48 W. H. Bell,48G. Bella,152L. Bellagamba,19aF. Bellina,29M. Bellomo,29A. Belloni,56O. Beloborodova,106,g K. Belotskiy,95O. Beltramello,29O. Benary,152D. Benchekroun,134aM. Bendel,80K. Bendtz,145a,145bN. Benekos,164
Y. Benhammou,152E. Benhar Noccioli,48J. A. Benitez Garcia,158bD. P. Benjamin,44M. Benoit,114J. R. Bensinger,22 K. Benslama,129S. Bentvelsen,104D. Berge,29E. Bergeaas Kuutmann,41N. Berger,4F. Berghaus,168E. Berglund,104 J. Beringer,14P. Bernat,76R. Bernhard,47C. Bernius,24T. Berry,75C. Bertella,82A. Bertin,19a,19bF. Bertinelli,29 F. Bertolucci,121a,121bM. I. Besana,88a,88bN. Besson,135S. Bethke,98W. Bhimji,45R. M. Bianchi,29M. Bianco,71a,71b
O. Biebel,97S. P. Bieniek,76K. Bierwagen,53J. Biesiada,14M. Biglietti,133aH. Bilokon,46M. Bindi,19a,19b S. Binet,114A. Bingul,18cC. Bini,131a,131bC. Biscarat,176U. Bitenc,47K. M. Black,21R. E. Blair,5J.-B. Blanchard,135
G. Blanchot,29T. Blazek,143aC. Blocker,22J. Blocki,38A. Blondel,48W. Blum,80U. Blumenschein,53 G. J. Bobbink,104V. B. Bobrovnikov,106S. S. Bocchetta,78A. Bocci,44C. R. Boddy,117M. Boehler,41J. Boek,173
N. Boelaert,35J. A. Bogaerts,29A. Bogdanchikov,106A. Bogouch,89,aC. Bohm,145aJ. Bohm,124V. Boisvert,75 T. Bold,37V. Boldea,25aN. M. Bolnet,135M. Bomben,77M. Bona,74V. G. Bondarenko,95M. Bondioli,162 M. Boonekamp,135C. N. Booth,138S. Bordoni,77C. Borer,16A. Borisov,127G. Borissov,70I. Borjanovic,12a M. Borri,81S. Borroni,86V. Bortolotto,133a,133bK. Bos,104D. Boscherini,19aM. Bosman,11H. Boterenbrood,104
D. Botterill,128J. Bouchami,92J. Boudreau,122E. V. Bouhova-Thacker,70D. Boumediene,33C. Bourdarios,114 N. Bousson,82A. Boveia,30J. Boyd,29I. R. Boyko,63N. I. Bozhko,127I. Bozovic-Jelisavcic,12bJ. Bracinik,17 A. Braem,29P. Branchini,133aG. W. Brandenburg,56A. Brandt,7G. Brandt,117O. Brandt,53U. Bratzler,155B. Brau,83
J. E. Brau,113H. M. Braun,173B. Brelier,157J. Bremer,29K. Brendlinger,119R. Brenner,165S. Bressler,170 D. Britton,52F. M. Brochu,27I. Brock,20R. Brock,87T. J. Brodbeck,70E. Brodet,152F. Broggi,88aC. Bromberg,87
J. Bronner,98G. Brooijmans,34W. K. Brooks,31bG. Brown,81H. Brown,7P. A. Bruckman de Renstrom,38 D. Bruncko,143bR. Bruneliere,47S. Brunet,59A. Bruni,19aG. Bruni,19aM. Bruschi,19aT. Buanes,13Q. Buat,54 F. Bucci,48J. Buchanan,117P. Buchholz,140R. M. Buckingham,117A. G. Buckley,45S. I. Buda,25aI. A. Budagov,63 B. Budick,107V. Bu¨scher,80L. Bugge,116O. Bulekov,95A. C. Bundock,72M. Bunse,42T. Buran,116H. Burckhart,29
S. Burdin,72T. Burgess,13S. Burke,128E. Busato,33P. Bussey,52C. P. Buszello,165F. Butin,29B. Butler,142 J. M. Butler,21C. M. Buttar,52J. M. Butterworth,76W. Buttinger,27S. Cabrera Urba´n,166D. Caforio,19a,19bO. Cakir,3a P. Calafiura,14G. Calderini,77P. Calfayan,97R. Calkins,105L. P. Caloba,23aR. Caloi,131a,131bD. Calvet,33S. Calvet,33 R. Camacho Toro,33P. Camarri,132a,132bM. Cambiaghi,118a,118bD. Cameron,116L. M. Caminada,14S. Campana,29
M. Campanelli,76V. Canale,101a,101bF. Canelli,30,hA. Canepa,158aJ. Cantero,79L. Capasso,101a,101b M. D. M. Capeans Garrido,29I. Caprini,25aM. Caprini,25aD. Capriotti,98M. Capua,36a,36bR. Caputo,80 R. Cardarelli,132aT. Carli,29G. Carlino,101aL. Carminati,88a,88bB. Caron,84S. Caron,103E. Carquin,31b G. D. Carrillo Montoya,171A. A. Carter,74J. R. Carter,27J. Carvalho,123a,iD. Casadei,107M. P. Casado,11
M. Cascella,121a,121bC. Caso,49a,49b,aA. M. Castaneda Hernandez,171E. Castaneda-Miranda,171
V. Castillo Gimenez,166N. F. Castro,123aG. Cataldi,71aP. Catastini,56A. Catinaccio,29J. R. Catmore,29A. Cattai,29 G. Cattani,132a,132bS. Caughron,87D. Cauz,163a,163cP. Cavalleri,77D. Cavalli,88aM. Cavalli-Sforza,11 V. Cavasinni,121a,121bF. Ceradini,133a,133bA. S. Cerqueira,23bA. Cerri,29L. Cerrito,74F. Cerutti,46S. A. Cetin,18b F. Cevenini,101a,101bA. Chafaq,134aD. Chakraborty,105I. Chalupkova,125K. Chan,2B. Chapleau,84J. D. Chapman,27
J. W. Chapman,86E. Chareyre,77D. G. Charlton,17V. Chavda,81C. A. Chavez Barajas,29S. Cheatham,84 S. Chekanov,5S. V. Chekulaev,158aG. A. Chelkov,63M. A. Chelstowska,103C. Chen,62H. Chen,24S. Chen,32c
T. Chen,32cX. Chen,171S. Cheng,32aA. Cheplakov,63V. F. Chepurnov,63R. Cherkaoui El Moursli,134e V. Chernyatin,24E. Cheu,6S. L. Cheung,157L. Chevalier,135G. Chiefari,101a,101bL. Chikovani,50aJ. T. Childers,29
A. Chilingarov,70G. Chiodini,71aA. S. Chisholm,17R. T. Chislett,76M. V. Chizhov,63G. Choudalakis,30 S. Chouridou,136I. A. Christidi,76A. Christov,47D. Chromek-Burckhart,29M. L. Chu,150J. Chudoba,124 G. Ciapetti,131a,131bA. K. Ciftci,3aR. Ciftci,3aD. Cinca,33V. Cindro,73C. Ciocca,19aA. Ciocio,14M. Cirilli,86
M. Citterio,88aM. Ciubancan,25aA. Clark,48P. J. Clark,45W. Cleland,122J. C. Clemens,82B. Clement,54 C. Clement,145a,145bY. Coadou,82M. Cobal,163a,163cA. Coccaro,137J. Cochran,62P. Coe,117J. G. Cogan,142
J. Coggeshall,164E. Cogneras,176J. Colas,4A. P. Colijn,104N. J. Collins,17C. Collins-Tooth,52J. Collot,54 G. Colon,83P. Conde Muin˜o,123aE. Coniavitis,117M. C. Conidi,11M. Consonni,103S. M. Consonni,88a,88b V. Consorti,47S. Constantinescu,25aC. Conta,118a,118bG. Conti,56F. Conventi,101a,jJ. Cook,29M. Cooke,14
B. D. Cooper,76A. M. Cooper-Sarkar,117K. Copic,14T. Cornelissen,173M. Corradi,19aF. Corriveau,84,k A. Cortes-Gonzalez,164G. Cortiana,98G. Costa,88aM. J. Costa,166D. Costanzo,138T. Costin,30D. Coˆte´,29 L. Courneyea,168G. Cowan,75C. Cowden,27B. E. Cox,81K. Cranmer,107F. Crescioli,121a,121bM. Cristinziani,20
G. Crosetti,36a,36bR. Crupi,71a,71bS. Cre´pe´-Renaudin,54C.-M. Cuciuc,25aC. Cuenca Almenar,174 T. Cuhadar Donszelmann,138M. Curatolo,46C. J. Curtis,17C. Cuthbert,149P. Cwetanski,59H. Czirr,140
P. Czodrowski,43Z. Czyczula,174S. D’Auria,52M. D’Onofrio,72A. D’Orazio,131a,131bP. V. M. Da Silva,23a C. Da Via,81W. Dabrowski,37A. Dafinca,117T. Dai,86C. Dallapiccola,83M. Dam,35M. Dameri,49a,49b D. S. Damiani,136H. O. Danielsson,29D. Dannheim,98V. Dao,48G. Darbo,49aG. L. Darlea,25bW. Davey,20 T. Davidek,125N. Davidson,85R. Davidson,70E. Davies,117,dM. Davies,92A. R. Davison,76Y. Davygora,57a
E. Dawe,141I. Dawson,138J. W. Dawson,5,aR. K. Daya-Ishmukhametova,22K. De,7R. de Asmundis,101a S. De Castro,19a,19bP. E. De Castro Faria Salgado,24S. De Cecco,77J. de Graat,97N. De Groot,103P. de Jong,104
C. De La Taille,114H. De la Torre,79F. De Lorenzi,62B. De Lotto,163a,163cL. de Mora,70L. De Nooij,104 D. De Pedis,131aA. De Salvo,131aU. De Sanctis,163a,163cA. De Santo,148J. B. De Vivie De Regie,114 G. De Zorzi,131a,131bS. Dean,76W. J. Dearnaley,70R. Debbe,24C. Debenedetti,45B. Dechenaux,54D. V. Dedovich,63
J. Degenhardt,119C. Del Papa,163a,163cJ. Del Peso,79T. Del Prete,121a,121bT. Delemontex,54M. Deliyergiyev,73 A. Dell’Acqua,29L. Dell’Asta,21M. Della Pietra,101a,jD. della Volpe,101a,101bM. Delmastro,4N. Delruelle,29
P. A. Delsart,54C. Deluca,147S. Demers,174M. Demichev,63B. Demirkoz,11,lJ. Deng,162S. P. Denisov,127 D. Derendarz,38J. E. Derkaoui,134dF. Derue,77P. Dervan,72K. Desch,20E. Devetak,147P. O. Deviveiros,104
A. Dewhurst,128B. DeWilde,147S. Dhaliwal,157R. Dhullipudi,24,mA. Di Ciaccio,132a,132bL. Di Ciaccio,4 A. Di Girolamo,29B. Di Girolamo,29S. Di Luise,133a,133bA. Di Mattia,171B. Di Micco,29R. Di Nardo,46 A. Di Simone,132a,132bR. Di Sipio,19a,19bM. A. Diaz,31aF. Diblen,18cE. B. Diehl,86J. Dietrich,41T. A. Dietzsch,57a
S. Diglio,85K. Dindar Yagci,39J. Dingfelder,20C. Dionisi,131a,131bP. Dita,25aS. Dita,25aF. Dittus,29F. Djama,82 T. Djobava,50bM. A. B. do Vale,23cA. Do Valle Wemans,123aT. K. O. Doan,4M. Dobbs,84R. Dobinson,29,a
D. Dobos,29E. Dobson,29,nJ. Dodd,34C. Doglioni,48T. Doherty,52Y. Doi,64,aJ. Dolejsi,125I. Dolenc,73 Z. Dolezal,125B. A. Dolgoshein,95,aT. Dohmae,154M. Donadelli,23dM. Donega,119J. Donini,33J. Dopke,29 A. Doria,101aA. Dos Anjos,171M. Dosil,11A. Dotti,121a,121bM. T. Dova,69A. D. Doxiadis,104A. T. Doyle,52 Z. Drasal,125N. Dressnandt,119C. Driouichi,35M. Dris,9J. Dubbert,98S. Dube,14E. Duchovni,170G. Duckeck,97
A. Dudarev,29F. Dudziak,62M. Du¨hrssen,29I. P. Duerdoth,81L. Duflot,114M-A. Dufour,84M. Dunford,29 H. Duran Yildiz,3aR. Duxfield,138M. Dwuznik,37F. Dydak,29M. Du¨ren,51W. L. Ebenstein,44J. Ebke,97 S. Eckweiler,80K. Edmonds,80C. A. Edwards,75N. C. Edwards,52W. Ehrenfeld,41T. Ehrich,98T. Eifert,142
G. Eigen,13K. Einsweiler,14E. Eisenhandler,74T. Ekelof,165M. El Kacimi,134cM. Ellert,165S. Elles,4 F. Ellinghaus,80K. Ellis,74N. Ellis,29J. Elmsheuser,97M. Elsing,29D. Emeliyanov,128R. Engelmann,147A. Engl,97
B. Epp,60A. Eppig,86J. Erdmann,53A. Ereditato,16D. Eriksson,145aJ. Ernst,1M. Ernst,24J. Ernwein,135 D. Errede,164S. Errede,164E. Ertel,80M. Escalier,114C. Escobar,122X. Espinal Curull,11B. Esposito,46F. Etienne,82
A. I. Etienvre,135E. Etzion,152D. Evangelakou,53H. Evans,59L. Fabbri,19a,19bC. Fabre,29R. M. Fakhrutdinov,127 S. Falciano,131aY. Fang,171M. Fanti,88a,88bA. Farbin,7A. Farilla,133aJ. Farley,147T. Farooque,157S. Farrell,162
S. M. Farrington,117P. Farthouat,29P. Fassnacht,29D. Fassouliotis,8B. Fatholahzadeh,157A. Favareto,88a,88b L. Fayard,114S. Fazio,36a,36bR. Febbraro,33P. Federic,143aO. L. Fedin,120W. Fedorko,87M. Fehling-Kaschek,47 L. Feligioni,82D. Fellmann,5C. Feng,32dE. J. Feng,30A. B. Fenyuk,127J. Ferencei,143bJ. Ferland,92W. Fernando,5
S. Ferrag,52J. Ferrando,52V. Ferrara,41A. Ferrari,165P. Ferrari,104R. Ferrari,118aD. E. Ferreira de Lima,52 A. Ferrer,166M. L. Ferrer,46D. Ferrere,48C. Ferretti,86A. Ferretto Parodi,49a,49bM. Fiascaris,30F. Fiedler,80 A. Filipcˇicˇ,73A. Filippas,9F. Filthaut,103M. Fincke-Keeler,168M. C. N. Fiolhais,123a,iL. Fiorini,166A. Firan,39 G. Fischer,41M. J. Fisher,108M. Flechl,47I. Fleck,140J. Fleckner,80P. Fleischmann,172S. Fleischmann,173T. Flick,173
A. Floderus,78L. R. Flores Castillo,171M. J. Flowerdew,98M. Fokitis,9T. Fonseca Martin,16D. A. Forbush,137 A. Formica,135A. Forti,81D. Fortin,158aJ. M. Foster,81D. Fournier,114A. Foussat,29A. J. Fowler,44K. Fowler,136
H. Fox,70P. Francavilla,11S. Franchino,118a,118bD. Francis,29T. Frank,170M. Franklin,56S. Franz,29 M. Fraternali,118a,118bS. Fratina,119S. T. French,27C. Friedrich,41F. Friedrich,43R. Froeschl,29D. Froidevaux,29 J. A. Frost,27C. Fukunaga,155E. Fullana Torregrosa,29B. G. Fulsom,142J. Fuster,166C. Gabaldon,29O. Gabizon,170 T. Gadfort,24S. Gadomski,48G. Gagliardi,49a,49bP. Gagnon,59C. Galea,97E. J. Gallas,117V. Gallo,16B. J. Gallop,128 P. Gallus,124K. K. Gan,108Y. S. Gao,142,fV. A. Gapienko,127A. Gaponenko,14F. Garberson,174M. Garcia-Sciveres,14 C. Garcı´a,166J. E. Garcı´a Navarro,166R. W. Gardner,30N. Garelli,29H. Garitaonandia,104V. Garonne,29J. Garvey,17 C. Gatti,46G. Gaudio,118aB. Gaur,140L. Gauthier,135P. Gauzzi,131a,131bI. L. Gavrilenko,93C. Gay,167G. Gaycken,20
J-C. Gayde,29E. N. Gazis,9P. Ge,32dZ. Gecse,167C. N. P. Gee,128D. A. A. Geerts,104Ch. Geich-Gimbel,20 K. Gellerstedt,145a,145bC. Gemme,49aA. Gemmell,52M. H. Genest,54S. Gentile,131a,131bM. George,53S. George,75 P. Gerlach,173A. Gershon,152C. Geweniger,57aH. Ghazlane,134bN. Ghodbane,33B. Giacobbe,19aS. Giagu,131a,131b V. Giakoumopoulou,8V. Giangiobbe,11F. Gianotti,29B. Gibbard,24A. Gibson,157S. M. Gibson,29L. M. Gilbert,117
V. Gilewsky,90D. Gillberg,28A. R. Gillman,128D. M. Gingrich,2,eJ. Ginzburg,152N. Giokaris,8M. P. Giordani,163c R. Giordano,101a,101bF. M. Giorgi,15P. Giovannini,98P. F. Giraud,135D. Giugni,88aM. Giunta,92P. Giusti,19a
B. K. Gjelsten,116L. K. Gladilin,96C. Glasman,79J. Glatzer,47A. Glazov,41K. W. Glitza,173G. L. Glonti,63 J. R. Goddard,74J. Godfrey,141J. Godlewski,29M. Goebel,41T. Go¨pfert,43C. Goeringer,80C. Go¨ssling,42
T. Go¨ttfert,98S. Goldfarb,86T. Golling,174A. Gomes,123a,cL. S. Gomez Fajardo,41R. Gonc¸alo,75 J. Goncalves Pinto Firmino Da Costa,41L. Gonella,20A. Gonidec,29S. Gonzalez,171S. Gonza´lez de la Hoz,166
G. Gonzalez Parra,11M. L. Gonzalez Silva,26S. Gonzalez-Sevilla,48J. J. Goodson,147L. Goossens,29 P. A. Gorbounov,94H. A. Gordon,24I. Gorelov,102G. Gorfine,173B. Gorini,29E. Gorini,71a,71bA. Gorisˇek,73
E. Gornicki,38V. N. Goryachev,127B. Gosdzik,41A. T. Goshaw,5M. Gosselink,104M. I. Gostkin,63 I. Gough Eschrich,162M. Gouighri,134aD. Goujdami,134cM. P. Goulette,48A. G. Goussiou,137C. Goy,4 S. Gozpinar,22I. Grabowska-Bold,37P. Grafstro¨m,29K-J. Grahn,41F. Grancagnolo,71aS. Grancagnolo,15 V. Grassi,147V. Gratchev,120N. Grau,34H. M. Gray,29J. A. Gray,147E. Graziani,133aO. G. Grebenyuk,120
T. Greenshaw,72Z. D. Greenwood,24,mK. Gregersen,35I. M. Gregor,41P. Grenier,142J. Griffiths,137 N. Grigalashvili,63A. A. Grillo,136S. Grinstein,11Y. V. Grishkevich,96J.-F. Grivaz,114E. Gross,170
J. Grosse-Knetter,53J. Groth-Jensen,170K. Grybel,140V. J. Guarino,5D. Guest,174C. Guicheney,33A. Guida,71a,71b S. Guindon,53H. Guler,84,oJ. Gunther,124B. Guo,157J. Guo,34A. Gupta,30Y. Gusakov,63V. N. Gushchin,127 P. Gutierrez,110N. Guttman,152O. Gutzwiller,171C. Guyot,135C. Gwenlan,117C. B. Gwilliam,72A. Haas,142 S. Haas,29C. Haber,14H. K. Hadavand,39D. R. Hadley,17P. Haefner,98F. Hahn,29S. Haider,29Z. Hajduk,38
H. Hakobyan,175D. Hall,117J. Haller,53K. Hamacher,173P. Hamal,112M. Hamer,53A. Hamilton,144b,p S. Hamilton,160H. Han,32aL. Han,32bK. Hanagaki,115K. Hanawa,159M. Hance,14C. Handel,80P. Hanke,57a
J. R. Hansen,35J. B. Hansen,35J. D. Hansen,35P. H. Hansen,35P. Hansson,142K. Hara,159G. A. Hare,136 T. Harenberg,173S. Harkusha,89D. Harper,86R. D. Harrington,45O. M. Harris,137K. Harrison,17J. Hartert,47 F. Hartjes,104T. Haruyama,64A. Harvey,55S. Hasegawa,100Y. Hasegawa,139S. Hassani,135M. Hatch,29D. Hauff,98
S. Haug,16M. Hauschild,29R. Hauser,87M. Havranek,20C. M. Hawkes,17R. J. Hawkings,29A. D. Hawkins,78 D. Hawkins,162T. Hayakawa,65T. Hayashi,159D. Hayden,75H. S. Hayward,72S. J. Haywood,128E. Hazen,21 M. He,32dS. J. Head,17V. Hedberg,78L. Heelan,7S. Heim,87B. Heinemann,14S. Heisterkamp,35L. Helary,4 C. Heller,97M. Heller,29S. Hellman,145a,145bD. Hellmich,20C. Helsens,11R. C. W. Henderson,70M. Henke,57a A. Henrichs,53A. M. Henriques Correia,29S. Henrot-Versille,114F. Henry-Couannier,82C. Hensel,53T. Henß,173
C. M. Hernandez,7Y. Herna´ndez Jime´nez,166R. Herrberg,15G. Herten,47R. Hertenberger,97L. Hervas,29 G. G. Hesketh,76N. P. Hessey,104E. Higo´n-Rodriguez,166D. Hill,5,aJ. C. Hill,27N. Hill,5K. H. Hiller,41S. Hillert,20
S. J. Hillier,17I. Hinchliffe,14E. Hines,119M. Hirose,115F. Hirsch,42D. Hirschbuehl,173J. Hobbs,147N. Hod,152 M. C. Hodgkinson,138P. Hodgson,138A. Hoecker,29M. R. Hoeferkamp,102J. Hoffman,39D. Hoffmann,82 M. Hohlfeld,80M. Holder,140S. O. Holmgren,145aT. Holy,126J. L. Holzbauer,87Y. Homma,65T. M. Hong,119
L. Hooft van Huysduynen,107T. Horazdovsky,126C. Horn,142S. Horner,47J-Y. Hostachy,54S. Hou,150 M. A. Houlden,72A. Hoummada,134aJ. Howarth,81D. F. Howell,117I. Hristova,15J. Hrivnac,114I. Hruska,124 T. Hryn’ova,4P. J. Hsu,80S.-C. Hsu,14G. S. Huang,110Z. Hubacek,126F. Hubaut,82F. Huegging,20A. Huettmann,41
T. B. Huffman,117E. W. Hughes,34G. Hughes,70R. E. Hughes-Jones,81M. Huhtinen,29P. Hurst,56M. Hurwitz,14 U. Husemann,41N. Huseynov,63,qJ. Huston,87J. Huth,56G. Iacobucci,48G. Iakovidis,9M. Ibbotson,81 I. Ibragimov,140L. Iconomidou-Fayard,114J. Idarraga,114P. Iengo,101aO. Igonkina,104Y. Ikegami,64M. Ikeno,64
D. Iliadis,153N. Ilic,157M. Imori,154T. Ince,20J. Inigo-Golfin,29P. Ioannou,8M. Iodice,133aK. Iordanidou,8 V. Ippolito,131a,131bA. Irles Quiles,166C. Isaksson,165A. Ishikawa,65M. Ishino,66R. Ishmukhametov,39C. Issever,117
S. Istin,18aA. V. Ivashin,127W. Iwanski,38H. Iwasaki,64J. M. Izen,40V. Izzo,101aB. Jackson,119J. N. Jackson,72 P. Jackson,142M. R. Jaekel,29V. Jain,59K. Jakobs,47S. Jakobsen,35J. Jakubek,126D. K. Jana,110E. Jansen,76
H. Jansen,29A. Jantsch,98M. Janus,47G. Jarlskog,78L. Jeanty,56K. Jelen,37I. Jen-La Plante,30P. Jenni,29 A. Jeremie,4P. Jezˇ,35S. Je´ze´quel,4M. K. Jha,19aH. Ji,171W. Ji,80J. Jia,147Y. Jiang,32bM. Jimenez Belenguer,41
G. Jin,32bS. Jin,32aO. Jinnouchi,156M. D. Joergensen,35D. Joffe,39L. G. Johansen,13M. Johansen,145a,145b K. E. Johansson,145aP. Johansson,138S. Johnert,41K. A. Johns,6K. Jon-And,145a,145bG. Jones,117R. W. L. Jones,70
T. W. Jones,76T. J. Jones,72O. Jonsson,29C. Joram,29P. M. Jorge,123aJ. Joseph,14K. D. Joshi,81J. Jovicevic,146 T. Jovin,12bX. Ju,171C. A. Jung,42R. M. Jungst,29V. Juranek,124P. Jussel,60A. Juste Rozas,11V. V. Kabachenko,127
S. Kabana,16M. Kaci,166A. Kaczmarska,38P. Kadlecik,35M. Kado,114H. Kagan,108M. Kagan,56S. Kaiser,98 E. Kajomovitz,151S. Kalinin,173L. V. Kalinovskaya,63S. Kama,39N. Kanaya,154M. Kaneda,29S. Kaneti,27
T. Kanno,156V. A. Kantserov,95J. Kanzaki,64B. Kaplan,174A. Kapliy,30J. Kaplon,29D. Kar,52M. Karagounis,20 M. Karagoz,117M. Karnevskiy,41V. Kartvelishvili,70A. N. Karyukhin,127L. Kashif,171G. Kasieczka,57b R. D. Kass,108A. Kastanas,13M. Kataoka,4Y. Kataoka,154E. Katsoufis,9J. Katzy,41V. Kaushik,6K. Kawagoe,68
T. Kawamoto,154G. Kawamura,80M. S. Kayl,104V. A. Kazanin,106M. Y. Kazarinov,63R. Keeler,168R. Kehoe,39 M. Keil,53G. D. Kekelidze,63J. S. Keller,137J. Kennedy,97M. Kenyon,52O. Kepka,124N. Kerschen,29 B. P. Kersˇevan,73S. Kersten,173K. Kessoku,154J. Keung,157F. Khalil-zada,10H. Khandanyan,164A. Khanov,111
D. Kharchenko,63A. Khodinov,95A. G. Kholodenko,127A. Khomich,57aT. J. Khoo,27G. Khoriauli,20 A. Khoroshilov,173N. Khovanskiy,63V. Khovanskiy,94E. Khramov,63J. Khubua,50bH. Kim,145a,145bM. S. Kim,2
S. H. Kim,159N. Kimura,169O. Kind,15B. T. King,72M. King,65R. S. B. King,117J. Kirk,128L. E. Kirsch,22 A. E. Kiryunin,98T. Kishimoto,65D. Kisielewska,37T. Kittelmann,122A. M. Kiver,127E. Kladiva,143bM. Klein,72
U. Klein,72K. Kleinknecht,80M. Klemetti,84A. Klier,170P. Klimek,145a,145bA. Klimentov,24R. Klingenberg,42 J. A. Klinger,81E. B. Klinkby,35T. Klioutchnikova,29P. F. Klok,103S. Klous,104E.-E. Kluge,57aT. Kluge,72 P. Kluit,104S. Kluth,98N. S. Knecht,157E. Kneringer,60J. Knobloch,29E. B. F. G. Knoops,82A. Knue,53B. R. Ko,44
T. Kobayashi,154M. Kobel,43M. Kocian,142P. Kodys,125K. Ko¨neke,29A. C. Ko¨nig,103S. Koenig,80L. Ko¨pke,80 F. Koetsveld,103P. Koevesarki,20T. Koffas,28E. Koffeman,104L. A. Kogan,117S. Kohlmann,173F. Kohn,53
Z. Kohout,126T. Kohriki,64T. Koi,142T. Kokott,20G. M. Kolachev,106H. Kolanoski,15V. Kolesnikov,63 I. Koletsou,88aJ. Koll,87M. Kollefrath,47S. D. Kolya,81A. A. Komar,93Y. Komori,154T. Kondo,64T. Kono,41,r A. I. Kononov,47R. Konoplich,107,sN. Konstantinidis,76A. Kootz,173S. Koperny,37K. Korcyl,38K. Kordas,153 V. Koreshev,127A. Korn,117A. Korol,106I. Korolkov,11E. V. Korolkova,138V. A. Korotkov,127O. Kortner,98 S. Kortner,98V. V. Kostyukhin,20M. J. Kotama¨ki,29S. Kotov,98V. M. Kotov,63A. Kotwal,44C. Kourkoumelis,8
V. Kouskoura,153A. Koutsman,158aR. Kowalewski,168T. Z. Kowalski,37W. Kozanecki,135A. S. Kozhin,127 V. Kral,126V. A. Kramarenko,96G. Kramberger,73M. W. Krasny,77A. Krasznahorkay,107J. Kraus,87J. K. Kraus,20 F. Krejci,126J. Kretzschmar,72N. Krieger,53P. Krieger,157K. Kroeninger,53H. Kroha,98J. Kroll,119J. Kroseberg,20 J. Krstic,12aU. Kruchonak,63H. Kru¨ger,20T. Kruker,16N. Krumnack,62Z. V. Krumshteyn,63A. Kruth,20T. Kubota,85
S. Kuday,3aS. Kuehn,47A. Kugel,57cT. Kuhl,41D. Kuhn,60V. Kukhtin,63Y. Kulchitsky,89S. Kuleshov,31b C. Kummer,97M. Kuna,77J. Kunkle,119A. Kupco,124H. Kurashige,65M. Kurata,159Y. A. Kurochkin,89V. Kus,124 E. S. Kuwertz,146M. Kuze,156J. Kvita,141R. Kwee,15A. La Rosa,48L. La Rotonda,36a,36bL. Labarga,79J. Labbe,4
S. Lablak,134aC. Lacasta,166F. Lacava,131a,131bH. Lacker,15D. Lacour,77V. R. Lacuesta,166E. Ladygin,63 R. Lafaye,4B. Laforge,77T. Lagouri,79S. Lai,47E. Laisne,54M. Lamanna,29L. Lambourne,76C. L. Lampen,6 W. Lampl,6E. Lancon,135U. Landgraf,47M. P. J. Landon,74J. L. Lane,81C. Lange,41A. J. Lankford,162F. Lanni,24 K. Lantzsch,173S. Laplace,77C. Lapoire,20J. F. Laporte,135T. Lari,88aA. V. Larionov,127A. Larner,117C. Lasseur,29
M. Lassnig,29P. Laurelli,46V. Lavorini,36a,36bW. Lavrijsen,14P. Laycock,72A. B. Lazarev,63O. Le Dortz,77 E. Le Guirriec,82C. Le Maner,157E. Le Menedeu,11C. Lebel,92T. LeCompte,5F. Ledroit-Guillon,54H. Lee,104 J. S. H. Lee,115S. C. Lee,150L. Lee,174M. Lefebvre,168M. Legendre,135A. Leger,48B. C. LeGeyt,119F. Legger,97
C. Leggett,14M. Lehmacher,20G. Lehmann Miotto,29X. Lei,6M. A. L. Leite,23dR. Leitner,125D. Lellouch,170 M. Leltchouk,34B. Lemmer,53V. Lendermann,57aK. J. C. Leney,144bT. Lenz,104G. Lenzen,173B. Lenzi,29 K. Leonhardt,43S. Leontsinis,9F. Lepold,57aC. Leroy,92J-R. Lessard,168C. G. Lester,27C. M. Lester,119J. Leveˆque,4 D. Levin,86L. J. Levinson,170M. S. Levitski,127A. Lewis,117G. H. Lewis,107A. M. Leyko,20M. Leyton,15B. Li,82 H. Li,171,tS. Li,32b,uX. Li,86Z. Liang,117,vH. Liao,33B. Liberti,132aP. Lichard,29M. Lichtnecker,97K. Lie,164 W. Liebig,13C. Limbach,20A. Limosani,85M. Limper,61S. C. Lin,150,wF. Linde,104J. T. Linnemann,87E. Lipeles,119 L. Lipinsky,124A. Lipniacka,13T. M. Liss,164D. Lissauer,24A. Lister,48A. M. Litke,136C. Liu,28D. Liu,150H. Liu,86
J. B. Liu,86M. Liu,32bY. Liu,32bM. Livan,118a,118bS. S. A. Livermore,117A. Lleres,54J. Llorente Merino,79 S. L. Lloyd,74E. Lobodzinska,41P. Loch,6W. S. Lockman,136T. Loddenkoetter,20F. K. Loebinger,81A. Loginov,174 C. W. Loh,167T. Lohse,15K. Lohwasser,47M. Lokajicek,124J. Loken,117V. P. Lombardo,4R. E. Long,70L. Lopes,123a
D. Lopez Mateos,56J. Lorenz,97N. Lorenzo Martinez,114M. Losada,161P. Loscutoff,14F. Lo Sterzo,131a,131b M. J. Losty,158aX. Lou,40A. Lounis,114K. F. Loureiro,161J. Love,21P. A. Love,70A. J. Lowe,142,fF. Lu,32a H. J. Lubatti,137C. Luci,131a,131bA. Lucotte,54A. Ludwig,43D. Ludwig,41I. Ludwig,47J. Ludwig,47F. Luehring,59
G. Luijckx,104W. Lukas,60D. Lumb,47L. Luminari,131aE. Lund,116B. Lund-Jensen,146B. Lundberg,78 J. Lundberg,145a,145bJ. Lundquist,35M. Lungwitz,80G. Lutz,98D. Lynn,24J. Lys,14E. Lytken,78H. Ma,24 L. L. Ma,171J. A. Macana Goia,92G. Maccarrone,46A. Macchiolo,98B. Macˇek,73J. Machado Miguens,123a
L. Magnoni,29E. Magradze,53Y. Mahalalel,152K. Mahboubi,47S. Mahmoud,72G. Mahout,17C. Maiani,131a,131b C. Maidantchik,23aA. Maio,123a,cS. Majewski,24Y. Makida,64N. Makovec,114P. Mal,135B. Malaescu,29 Pa. Malecki,38P. Malecki,38V. P. Maleev,120F. Malek,54U. Mallik,61D. Malon,5C. Malone,142S. Maltezos,9
V. Malyshev,106S. Malyukov,29R. Mameghani,97J. Mamuzic,12bA. Manabe,64L. Mandelli,88aI. Mandic´,73 R. Mandrysch,15J. Maneira,123aP. S. Mangeard,87L. Manhaes de Andrade Filho,23aI. D. Manjavidze,63A. Mann,53 P. M. Manning,136A. Manousakis-Katsikakis,8B. Mansoulie,135A. Manz,98A. Mapelli,29L. Mapelli,29L. March,79
J. F. Marchand,28F. Marchese,132a,132bG. Marchiori,77M. Marcisovsky,124C. P. Marino,168F. Marroquim,23a R. Marshall,81Z. Marshall,29F. K. Martens,157S. Marti-Garcia,166A. J. Martin,174B. Martin,29B. Martin,87 F. F. Martin,119J. P. Martin,92Ph. Martin,54T. A. Martin,17V. J. Martin,45B. Martin dit Latour,48S. Martin-Haugh,148
M. Martinez,11V. Martinez Outschoorn,56A. C. Martyniuk,168M. Marx,81F. Marzano,131aA. Marzin,110 L. Masetti,80T. Mashimo,154R. Mashinistov,93J. Masik,81A. L. Maslennikov,106I. Massa,19a,19bG. Massaro,104 N. Massol,4P. Mastrandrea,131a,131bA. Mastroberardino,36a,36bT. Masubuchi,154P. Matricon,114H. Matsunaga,154
T. Matsushita,65C. Mattravers,117,dJ. M. Maugain,29J. Maurer,82S. J. Maxfield,72E. N. May,5A. Mayne,138 R. Mazini,150M. Mazur,20L. Mazzaferro,132a,132bM. Mazzanti,88aS. P. Mc Kee,86A. McCarn,164R. L. McCarthy,147
T. G. McCarthy,28N. A. McCubbin,128K. W. McFarlane,55J. A. Mcfayden,138H. McGlone,52G. Mchedlidze,50b R. A. McLaren,29T. Mclaughlan,17S. J. McMahon,128R. A. McPherson,168,kA. Meade,83J. Mechnich,104 M. Mechtel,173M. Medinnis,41R. Meera-Lebbai,110T. Meguro,115R. Mehdiyev,92S. Mehlhase,35A. Mehta,72
K. Meier,57aB. Meirose,78C. Melachrinos,30B. R. Mellado Garcia,171F. Meloni,88a,88bL. Mendoza Navas,161 Z. Meng,150,tA. Mengarelli,19a,19bS. Menke,98C. Menot,29E. Meoni,11K. M. Mercurio,56P. Mermod,48 L. Merola,101a,101bC. Meroni,88aF. S. Merritt,30H. Merritt,108A. Messina,29J. Metcalfe,102A. S. Mete,62 C. Meyer,80C. Meyer,30J-P. Meyer,135J. Meyer,172J. Meyer,53T. C. Meyer,29W. T. Meyer,62J. Miao,32dS. Michal,29
L. Micu,25aR. P. Middleton,128S. Migas,72L. Mijovic´,41G. Mikenberg,170M. Mikestikova,124M. Mikuzˇ,73 D. W. Miller,30R. J. Miller,87W. J. Mills,167C. Mills,56A. Milov,170D. A. Milstead,145a,145bD. Milstein,170 A. A. Minaenko,127M. Min˜ano Moya,166I. A. Minashvili,63A. I. Mincer,107B. Mindur,37M. Mineev,63Y. Ming,171
L. M. Mir,11G. Mirabelli,131aL. Miralles Verge,11A. Misiejuk,75J. Mitrevski,136G. Y. Mitrofanov,127 V. A. Mitsou,166S. Mitsui,64P. S. Miyagawa,138K. Miyazaki,65J. U. Mjo¨rnmark,78T. Moa,145a,145bP. Mockett,137
S. Moed,56V. Moeller,27K. Mo¨nig,41N. Mo¨ser,20S. Mohapatra,147W. Mohr,47S. Mohrdieck-Mo¨ck,98 R. Moles-Valls,166J. Molina-Perez,29J. Monk,76E. Monnier,82S. Montesano,88a,88bF. Monticelli,69 S. Monzani,19a,19bR. W. Moore,2G. F. Moorhead,85C. Mora Herrera,48A. Moraes,52N. Morange,135J. Morel,53 G. Morello,36a,36bD. Moreno,80M. Moreno Lla´cer,166P. Morettini,49aM. Morgenstern,43M. Morii,56J. Morin,74 A. K. Morley,29G. Mornacchi,29S. V. Morozov,95J. D. Morris,74L. Morvaj,100H. G. Moser,98M. Mosidze,50b J. Moss,108R. Mount,142E. Mountricha,9,xS. V. Mouraviev,93E. J. W. Moyse,83M. Mudrinic,12bF. Mueller,57a J. Mueller,122K. Mueller,20T. A. Mu¨ller,97T. Mueller,80D. Muenstermann,29Y. Munwes,152W. J. Murray,128
I. Mussche,104E. Musto,101a,101bA. G. Myagkov,127M. Myska,124J. Nadal,11K. Nagai,159K. Nagano,64 A. Nagarkar,108Y. Nagasaka,58M. Nagel,98A. M. Nairz,29Y. Nakahama,29K. Nakamura,154T. Nakamura,154
I. Nakano,109G. Nanava,20A. Napier,160R. Narayan,57bM. Nash,76,dN. R. Nation,21T. Nattermann,20 T. Naumann,41G. Navarro,161H. A. Neal,86E. Nebot,79P. Yu. Nechaeva,93T. J. Neep,81A. Negri,118a,118bG. Negri,29 S. Nektarijevic,48A. Nelson,162T. K. Nelson,142S. Nemecek,124P. Nemethy,107A. A. Nepomuceno,23aM. Nessi,29,y
M. S. Neubauer,164A. Neusiedl,80R. M. Neves,107P. Nevski,24P. R. Newman,17V. Nguyen Thi Hong,135 R. B. Nickerson,117R. Nicolaidou,135L. Nicolas,138B. Nicquevert,29F. Niedercorn,114J. Nielsen,136T. Niinikoski,29
N. Nikiforou,34A. Nikiforov,15V. Nikolaenko,127K. Nikolaev,63I. Nikolic-Audit,77K. Nikolics,48 K. Nikolopoulos,24H. Nilsen,47P. Nilsson,7Y. Ninomiya,154A. Nisati,131aT. Nishiyama,65R. Nisius,98 L. Nodulman,5M. Nomachi,115I. Nomidis,153M. Nordberg,29P. R. Norton,128J. Novakova,125M. Nozaki,64
L. Nozka,112I. M. Nugent,158aA.-E. Nuncio-Quiroz,20G. Nunes Hanninger,85T. Nunnemann,97E. Nurse,76 B. J. O’Brien,45S. W. O’Neale,17,aD. C. O’Neil,141V. O’Shea,52L. B. Oakes,97F. G. Oakham,28,eH. Oberlack,98
J. Ocariz,77A. Ochi,65S. Oda,154S. Odaka,64J. Odier,82H. Ogren,59A. Oh,81S. H. Oh,44C. C. Ohm,145a,145b T. Ohshima,100H. Ohshita,139S. Okada,65H. Okawa,162Y. Okumura,100T. Okuyama,154A. Olariu,25aM. Olcese,49a A. G. Olchevski,63S. A. Olivares Pino,31aM. Oliveira,123a,iD. Oliveira Damazio,24E. Oliver Garcia,166D. Olivito,119 A. Olszewski,38J. Olszowska,38C. Omachi,65A. Onofre,123a,zP. U. E. Onyisi,30C. J. Oram,158aM. J. Oreglia,30 Y. Oren,152D. Orestano,133a,133bN. Orlando,71a,71bI. Orlov,106C. Oropeza Barrera,52R. S. Orr,157B. Osculati,49a,49b
F. Ould-Saada,116A. Ouraou,135Q. Ouyang,32aA. Ovcharova,14M. Owen,81S. Owen,138V. E. Ozcan,18aN. Ozturk,7 A. Pacheco Pages,11C. Padilla Aranda,11S. Pagan Griso,14E. Paganis,138F. Paige,24P. Pais,83K. Pajchel,116
G. Palacino,158bC. P. Paleari,6S. Palestini,29D. Pallin,33A. Palma,123aJ. D. Palmer,17Y. B. Pan,171 E. Panagiotopoulou,9N. Panikashvili,86S. Panitkin,24D. Pantea,25aM. Panuskova,124V. Paolone,122 A. Papadelis,145aTh. D. Papadopoulou,9A. Paramonov,5D. Paredes Hernandez,33W. Park,24,aaM. A. Parker,27 F. Parodi,49a,49bJ. A. Parsons,34U. Parzefall,47S. Pashapour,53E. Pasqualucci,131aS. Passaggio,49aA. Passeri,133a
F. Pastore,133a,133bFr. Pastore,75G. Pa´sztor,48,bbS. Pataraia,173N. Patel,149J. R. Pater,81S. Patricelli,101a,101b T. Pauly,29M. Pecsy,143aM. I. Pedraza Morales,171S. V. Peleganchuk,106D. Pelikan,165H. Peng,32bB. Penning,30
A. Penson,34J. Penwell,59M. Perantoni,23aK. Perez,34,ccT. Perez Cavalcanti,41E. Perez Codina,158a M. T. Pe´rez Garcı´a-Estan˜,166V. Perez Reale,34L. Perini,88a,88bH. Pernegger,29R. Perrino,71aP. Perrodo,4 S. Persembe,3aV. D. Peshekhonov,63K. Peters,29B. A. Petersen,29J. Petersen,29T. C. Petersen,35E. Petit,4 A. Petridis,153C. Petridou,153E. Petrolo,131aF. Petrucci,133a,133bD. Petschull,41M. Petteni,141R. Pezoa,31b A. Phan,85P. W. Phillips,128G. Piacquadio,29A. Picazio,48E. Piccaro,74M. Piccinini,19a,19bS. M. Piec,41 R. Piegaia,26D. T. Pignotti,108J. E. Pilcher,30A. D. Pilkington,81J. Pina,123a,cM. Pinamonti,163a,163cA. Pinder,117
J. L. Pinfold,2J. Ping,32cB. Pinto,123aC. Pizio,88a,88bR. Placakyte,41M. Plamondon,168M.-A. Pleier,24 A. V. Pleskach,127E. Plotnikova,63A. Poblaguev,24S. Poddar,57aF. Podlyski,33L. Poggioli,114T. Poghosyan,20
M. Pohl,48F. Polci,54G. Polesello,118aA. Policicchio,36a,36bA. Polini,19aJ. Poll,74V. Polychronakos,24 D. M. Pomarede,135D. Pomeroy,22K. Pomme`s,29L. Pontecorvo,131aB. G. Pope,87G. A. Popeneciu,25a D. S. Popovic,12aA. Poppleton,29X. Portell Bueso,29C. Posch,21G. E. Pospelov,98S. Pospisil,126I. N. Potrap,98 C. J. Potter,148C. T. Potter,113G. Poulard,29J. Poveda,171V. Pozdnyakov,63R. Prabhu,76P. Pralavorio,82A. Pranko,14
S. Prasad,29R. Pravahan,24S. Prell,62K. Pretzl,16L. Pribyl,29D. Price,59J. Price,72L. E. Price,5M. J. Price,29 D. Prieur,122M. Primavera,71aK. Prokofiev,107F. Prokoshin,31bS. Protopopescu,24J. Proudfoot,5X. Prudent,43
M. Przybycien,37H. Przysiezniak,4S. Psoroulas,20E. Ptacek,113E. Pueschel,83J. Purdham,86M. Purohit,24,aa P. Puzo,114Y. Pylypchenko,61J. Qian,86Z. Qian,82Z. Qin,41A. Quadt,53D. R. Quarrie,14W. B. Quayle,171 F. Quinonez,31aM. Raas,103V. Radescu,41B. Radics,20P. Radloff,113T. Rador,18aF. Ragusa,88a,88bG. Rahal,176
A. M. Rahimi,108D. Rahm,24S. Rajagopalan,24M. Rammensee,47M. Rammes,140A. S. Randle-Conde,39 K. Randrianarivony,28P. N. Ratoff,70F. Rauscher,97T. C. Rave,47M. Raymond,29A. L. Read,116 D. M. Rebuzzi,118a,118bA. Redelbach,172G. Redlinger,24R. Reece,119K. Reeves,40A. Reichold,104 E. Reinherz-Aronis,152A. Reinsch,113I. Reisinger,42C. Rembser,29Z. L. Ren,150A. Renaud,114M. Rescigno,131a
S. Resconi,88aB. Resende,135P. Reznicek,97R. Rezvani,157A. Richards,76R. Richter,98E. Richter-Was,4,dd M. Ridel,77M. Rijpstra,104M. Rijssenbeek,147A. Rimoldi,118a,118bL. Rinaldi,19aR. R. Rios,39I. Riu,11 G. Rivoltella,88a,88bF. Rizatdinova,111E. Rizvi,74S. H. Robertson,84,kA. Robichaud-Veronneau,117D. Robinson,27 J. E. M. Robinson,76A. Robson,52J. G. Rocha de Lima,105C. Roda,121a,121bD. Roda Dos Santos,29D. Rodriguez,161 A. Roe,53S. Roe,29O. Røhne,116V. Rojo,1S. Rolli,160A. Romaniouk,95M. Romano,19a,19bV. M. Romanov,63
G. Romeo,26E. Romero Adam,166L. Roos,77E. Ros,166S. Rosati,131aK. Rosbach,48A. Rose,148M. Rose,75 G. A. Rosenbaum,157E. I. Rosenberg,62P. L. Rosendahl,13O. Rosenthal,140L. Rosselet,48V. Rossetti,11 E. Rossi,131a,131bL. P. Rossi,49aM. Rotaru,25aI. Roth,170J. Rothberg,137D. Rousseau,114C. R. Royon,135 A. Rozanov,82Y. Rozen,151X. Ruan,32a,eeF. Rubbo,11I. Rubinskiy,41B. Ruckert,97N. Ruckstuhl,104V. I. Rud,96 C. Rudolph,43G. Rudolph,60F. Ru¨hr,6F. Ruggieri,133a,133bA. Ruiz-Martinez,62V. Rumiantsev,90,aL. Rumyantsev,63
K. Runge,47Z. Rurikova,47N. A. Rusakovich,63J. P. Rutherfoord,6C. Ruwiedel,14P. Ruzicka,124Y. F. Ryabov,120 V. Ryadovikov,127P. Ryan,87M. Rybar,125G. Rybkin,114N. C. Ryder,117S. Rzaeva,10A. F. Saavedra,149I. Sadeh,152 H. F-W. Sadrozinski,136R. Sadykov,63F. Safai Tehrani,131aH. Sakamoto,154G. Salamanna,74A. Salamon,132a M. Saleem,110D. Salek,29D. Salihagic,98A. Salnikov,142J. Salt,166B. M. Salvachua Ferrando,5D. Salvatore,36a,36b
F. Salvatore,148A. Salvucci,103A. Salzburger,29D. Sampsonidis,153B. H. Samset,116A. Sanchez,101a,101b V. Sanchez Martinez,166H. Sandaker,13H. G. Sander,80M. P. Sanders,97M. Sandhoff,173T. Sandoval,27 C. Sandoval,161R. Sandstroem,98S. Sandvoss,173D. P. C. Sankey,128A. Sansoni,46C. Santamarina Rios,84 C. Santoni,33R. Santonico,132a,132bH. Santos,123aJ. G. Saraiva,123aT. Sarangi,171E. Sarkisyan-Grinbaum,7 F. Sarri,121a,121bG. Sartisohn,173O. Sasaki,64N. Sasao,66I. Satsounkevitch,89G. Sauvage,4E. Sauvan,4 J. B. Sauvan,114P. Savard,157,eV. Savinov,122D. O. Savu,29L. Sawyer,24,mD. H. Saxon,52J. Saxon,119L. P. Says,33 C. Sbarra,19aA. Sbrizzi,19a,19bO. Scallon,92D. A. Scannicchio,162M. Scarcella,149J. Schaarschmidt,114P. Schacht,98 D. Schaefer,119U. Scha¨fer,80S. Schaepe,20S. Schaetzel,57bA. C. Schaffer,114D. Schaile,97R. D. Schamberger,147
A. G. Schamov,106V. Scharf,57aV. A. Schegelsky,120D. Scheirich,86M. Schernau,162M. I. Scherzer,34 C. Schiavi,49a,49bJ. Schieck,97M. Schioppa,36a,36bS. Schlenker,29J. L. Schlereth,5E. Schmidt,47K. Schmieden,20
C. Schmitt,80S. Schmitt,57bM. Schmitz,20A. Scho¨ning,57bM. Schott,29D. Schouten,158aJ. Schovancova,124 M. Schram,84C. Schroeder,80N. Schroer,57cG. Schuler,29M. J. Schultens,20J. Schultes,173H.-C. Schultz-Coulon,57a
H. Schulz,15J. W. Schumacher,20M. Schumacher,47B. A. Schumm,136Ph. Schune,135C. Schwanenberger,81 A. Schwartzman,142Ph. Schwemling,77R. Schwienhorst,87R. Schwierz,43J. Schwindling,135T. Schwindt,20 M. Schwoerer,4G. Sciolla,22W. G. Scott,128J. Searcy,113G. Sedov,41E. Sedykh,120E. Segura,11S. C. Seidel,102 A. Seiden,136F. Seifert,43J. M. Seixas,23aG. Sekhniaidze,101aS. J. Sekula,39K. E. Selbach,45D. M. Seliverstov,120
B. Sellden,145aG. Sellers,72M. Seman,143bN. Semprini-Cesari,19a,19bC. Serfon,97L. Serin,114L. Serkin,53 R. Seuster,98H. Severini,110M. E. Sevior,85A. Sfyrla,29E. Shabalina,53M. Shamim,113L. Y. Shan,32aJ. T. Shank,21
Q. T. Shao,85M. Shapiro,14P. B. Shatalov,94L. Shaver,6K. Shaw,163a,163cD. Sherman,174P. Sherwood,76 A. Shibata,107H. Shichi,100S. Shimizu,29M. Shimojima,99T. Shin,55M. Shiyakova,63A. Shmeleva,93 M. J. Shochet,30D. Short,117S. Shrestha,62E. Shulga,95M. A. Shupe,6P. Sicho,124A. Sidoti,131aF. Siegert,47
Dj. Sijacki,12aO. Silbert,170J. Silva,123aY. Silver,152D. Silverstein,142S. B. Silverstein,145aV. Simak,126 O. Simard,135Lj. Simic,12aS. Simion,114B. Simmons,76R. Simoniello,88a,88bM. Simonyan,35P. Sinervo,157 N. B. Sinev,113V. Sipica,140G. Siragusa,172A. Sircar,24A. N. Sisakyan,63S. Yu. Sivoklokov,96J. Sjo¨lin,145a,145b
T. B. Sjursen,13L. A. Skinnari,14H. P. Skottowe,56K. Skovpen,106P. Skubic,110N. Skvorodnev,22M. Slater,17 T. Slavicek,126K. Sliwa,160J. Sloper,29V. Smakhtin,170B. H. Smart,45S. Yu. Smirnov,95Y. Smirnov,95 L. N. Smirnova,96O. Smirnova,78B. C. Smith,56D. Smith,142K. M. Smith,52M. Smizanska,70K. Smolek,126 A. A. Snesarev,93S. W. Snow,81J. Snow,110S. Snyder,24R. Sobie,168,kJ. Sodomka,126A. Soffer,152C. A. Solans,166
M. Solar,126J. Solc,126E. Soldatov,95U. Soldevila,166E. Solfaroli Camillocci,131a,131bA. A. Solodkov,127 O. V. Solovyanov,127N. Soni,2V. Sopko,126B. Sopko,126M. Sosebee,7R. Soualah,163a,163cA. Soukharev,106
S. Spagnolo,71a,71bF. Spano`,75R. Spighi,19aG. Spigo,29F. Spila,131a,131bR. Spiwoks,29M. Spousta,125 T. Spreitzer,157B. Spurlock,7R. D. St. Denis,52J. Stahlman,119R. Stamen,57aE. Stanecka,38R. W. Stanek,5 C. Stanescu,133aM. Stanescu-Bellu,41S. Stapnes,116E. A. Starchenko,127J. Stark,54P. Staroba,124P. Starovoitov,41
A. Staude,97P. Stavina,143aG. Steele,52P. Steinbach,43P. Steinberg,24I. Stekl,126B. Stelzer,141H. J. Stelzer,87 O. Stelzer-Chilton,158aH. Stenzel,51S. Stern,98K. Stevenson,74G. A. Stewart,29J. A. Stillings,20M. C. Stockton,84
K. Stoerig,47G. Stoicea,25aS. Stonjek,98P. Strachota,125A. R. Stradling,7A. Straessner,43J. Strandberg,146 S. Strandberg,145a,145bA. Strandlie,116M. Strang,108E. Strauss,142M. Strauss,110P. Strizenec,143bR. Stro¨hmer,172 D. M. Strom,113J. A. Strong,75,aR. Stroynowski,39J. Strube,128B. Stugu,13I. Stumer,24,aJ. Stupak,147P. Sturm,173 N. A. Styles,41D. A. Soh,150,vD. Su,142HS. Subramania,2A. Succurro,11Y. Sugaya,115T. Sugimoto,100C. Suhr,105
K. Suita,65M. Suk,125V. V. Sulin,93S. Sultansoy,3dT. Sumida,66X. Sun,54J. E. Sundermann,47K. Suruliz,138 S. Sushkov,11G. Susinno,36a,36bM. R. Sutton,148Y. Suzuki,64Y. Suzuki,65M. Svatos,124Yu. M. Sviridov,127 S. Swedish,167I. Sykora,143aT. Sykora,125B. Szeless,29J. Sa´nchez,166D. Ta,104K. Tackmann,41A. Taffard,162
R. Tafirout,158aN. Taiblum,152Y. Takahashi,100H. Takai,24R. Takashima,67H. Takeda,65T. Takeshita,139 Y. Takubo,64M. Talby,82A. Talyshev,106,gM. C. Tamsett,24J. Tanaka,154R. Tanaka,114S. Tanaka,130S. Tanaka,64
Y. Tanaka,99A. J. Tanasijczuk,141K. Tani,65N. Tannoury,82G. P. Tappern,29S. Tapprogge,80D. Tardif,157 S. Tarem,151F. Tarrade,28G. F. Tartarelli,88aP. Tas,125M. Tasevsky,124E. Tassi,36a,36bM. Tatarkhanov,14
Y. Tayalati,134dC. Taylor,76F. E. Taylor,91G. N. Taylor,85W. Taylor,158bM. Teinturier,114
M. Teixeira Dias Castanheira,74P. Teixeira-Dias,75K. K. Temming,47H. Ten Kate,29P. K. Teng,150S. Terada,64 K. Terashi,154J. Terron,79M. Testa,46R. J. Teuscher,157,kJ. Thadome,173J. Therhaag,20T. Theveneaux-Pelzer,77
M. Thioye,174S. Thoma,47J. P. Thomas,17E. N. Thompson,34P. D. Thompson,17P. D. Thompson,157 A. S. Thompson,52L. A. Thomsen,35E. Thomson,119M. Thomson,27R. P. Thun,86F. Tian,34M. J. Tibbetts,14
T. Tic,124V. O. Tikhomirov,93Y. A. Tikhonov,106,gS. Timoshenko,95P. Tipton,174F. J. Tique Aires Viegas,29 S. Tisserant,82B. Toczek,37T. Todorov,4S. Todorova-Nova,160B. Toggerson,162J. Tojo,68S. Toka´r,143a K. Tokunaga,65K. Tokushuku,64K. Tollefson,87M. Tomoto,100L. Tompkins,30K. Toms,102G. Tong,32a A. Tonoyan,13C. Topfel,16N. D. Topilin,63I. Torchiani,29E. Torrence,113H. Torres,77E. Torro´ Pastor,166J. Toth,82,bb
F. Touchard,82D. R. Tovey,138T. Trefzger,172L. Tremblet,29A. Tricoli,29I. M. Trigger,158aS. Trincaz-Duvoid,77 M. F. Tripiana,69W. Trischuk,157A. Trivedi,24,aaB. Trocme´,54C. Troncon,88aM. Trottier-McDonald,141 M. Trzebinski,38A. Trzupek,38C. Tsarouchas,29J. C-L. Tseng,117M. Tsiakiris,104P. V. Tsiareshka,89D. Tsionou,4,ff
D. Tsybychev,147A. Tua,138A. Tudorache,25aV. Tudorache,25aJ. M. Tuggle,30M. Turala,38D. Turecek,126 I. Turk Cakir,3eE. Turlay,104R. Turra,88a,88bP. M. Tuts,34A. Tykhonov,73M. Tylmad,145a,145bM. Tyndel,128 G. Tzanakos,8K. Uchida,20I. Ueda,154R. Ueno,28M. Ugland,13M. Uhlenbrock,20M. Uhrmacher,53F. Ukegawa,159 G. Unal,29D. G. Underwood,5A. Undrus,24G. Unel,162Y. Unno,64D. Urbaniec,34G. Usai,7M. Uslenghi,118a,118b L. Vacavant,82V. Vacek,126B. Vachon,84S. Vahsen,14J. Valenta,124P. Valente,131aS. Valentinetti,19a,19bS. Valkar,125
E. Valladolid Gallego,166S. Vallecorsa,151J. A. Valls Ferrer,166H. van der Graaf,104E. van der Kraaij,104 R. Van Der Leeuw,104E. van der Poel,104D. van der Ster,29N. van Eldik,83P. van Gemmeren,5Z. van Kesteren,104
I. van Vulpen,104M. Vanadia,98W. Vandelli,29G. Vandoni,29A. Vaniachine,5P. Vankov,41F. Vannucci,77 F. Varela Rodriguez,29R. Vari,131aT. Varol,83D. Varouchas,14A. Vartapetian,7K. E. Varvell,149 V. I. Vassilakopoulos,55F. Vazeille,33T. Vazquez Schroeder,53G. Vegni,88a,88bJ. J. Veillet,114C. Vellidis,8 F. Veloso,123aR. Veness,29S. Veneziano,131aA. Ventura,71a,71bD. Ventura,137M. Venturi,47N. Venturi,157 V. Vercesi,118aM. Verducci,137W. Verkerke,104J. C. Vermeulen,104A. Vest,43M. C. Vetterli,141,eI. Vichou,164 T. Vickey,144b,ggO. E. Vickey Boeriu,144bG. H. A. Viehhauser,117S. Viel,167M. Villa,19a,19bM. Villaplana Perez,166 E. Vilucchi,46M. G. Vincter,28E. Vinek,29V. B. Vinogradov,63M. Virchaux,135,aJ. Virzi,14O. Vitells,170M. Viti,41
I. Vivarelli,47F. Vives Vaque,2S. Vlachos,9D. Vladoiu,97M. Vlasak,126N. Vlasov,20A. Vogel,20P. Vokac,126 G. Volpi,46M. Volpi,85G. Volpini,88aH. von der Schmitt,98J. von Loeben,98H. von Radziewski,47E. von Toerne,20 V. Vorobel,125A. P. Vorobiev,127V. Vorwerk,11M. Vos,166R. Voss,29T. T. Voss,173J. H. Vossebeld,72N. Vranjes,135
M. Vranjes Milosavljevic,104V. Vrba,124M. Vreeswijk,104T. Vu Anh,47R. Vuillermet,29I. Vukotic,114 W. Wagner,173P. Wagner,119H. Wahlen,173J. Wakabayashi,100S. Walch,86J. Walder,70R. Walker,97 W. Walkowiak,140R. Wall,174P. Waller,72C. Wang,44H. Wang,171H. Wang,32b,hhJ. Wang,150J. Wang,54
J. C. Wang,137R. Wang,102S. M. Wang,150T. Wang,20A. Warburton,84C. P. Ward,27M. Warsinsky,47 A. Washbrook,45C. Wasicki,41P. M. Watkins,17A. T. Watson,17I. J. Watson,149M. F. Watson,17G. Watts,137 S. Watts,81A. T. Waugh,149B. M. Waugh,76M. Weber,128M. S. Weber,16P. Weber,53A. R. Weidberg,117P. Weigell,98
J. Weingarten,53C. Weiser,47H. Wellenstein,22P. S. Wells,29T. Wenaus,24D. Wendland,15S. Wendler,122 Z. Weng,150,vT. Wengler,29S. Wenig,29N. Wermes,20M. Werner,47P. Werner,29M. Werth,162M. Wessels,57a
J. Wetter,160C. Weydert,54K. Whalen,28S. J. Wheeler-Ellis,162S. P. Whitaker,21A. White,7M. J. White,85 S. White,121a,121bS. R. Whitehead,117D. Whiteson,162D. Whittington,59F. Wicek,114D. Wicke,173F. J. Wickens,128
W. Wiedenmann,171M. Wielers,128P. Wienemann,20C. Wiglesworth,74L. A. M. Wiik-Fuchs,47P. A. Wijeratne,76 A. Wildauer,166M. A. Wildt,41,rI. Wilhelm,125H. G. Wilkens,29J. Z. Will,97E. Williams,34H. H. Williams,119 W. Willis,34S. Willocq,83J. A. Wilson,17M. G. Wilson,142A. Wilson,86I. Wingerter-Seez,4S. Winkelmann,47 F. Winklmeier,29M. Wittgen,142M. W. Wolter,38H. Wolters,123a,iW. C. Wong,40G. Wooden,86B. K. Wosiek,38
J. Wotschack,29M. J. Woudstra,83K. W. Wozniak,38K. Wraight,52C. Wright,52M. Wright,52B. Wrona,72 S. L. Wu,171X. Wu,48Y. Wu,32b,iiE. Wulf,34R. Wunstorf,42B. M. Wynne,45S. Xella,35M. Xiao,135S. Xie,47
Y. Xie,32aC. Xu,32b,xD. Xu,138G. Xu,32aB. Yabsley,149S. Yacoob,144bM. Yamada,64H. Yamaguchi,154 A. Yamamoto,64K. Yamamoto,62S. Yamamoto,154T. Yamamura,154T. Yamanaka,154J. Yamaoka,44T. Yamazaki,154
Y. Yamazaki,65Z. Yan,21H. Yang,86U. K. Yang,81Y. Yang,59Y. Yang,32aZ. Yang,145a,145bS. Yanush,90Y. Yao,14 Y. Yasu,64G. V. Ybeles Smit,129J. Ye,39S. Ye,24M. Yilmaz,3cR. Yoosoofmiya,122K. Yorita,169R. Yoshida,5 C. Young,142C. J. Young,117S. Youssef,21D. Yu,24J. Yu,7J. Yu,111L. Yuan,65A. Yurkewicz,105B. Zabinski,38
V. G. Zaets,127R. Zaidan,61A. M. Zaitsev,127Z. Zajacova,29L. Zanello,131a,131bA. Zaytsev,106C. Zeitnitz,173 M. Zeller,174M. Zeman,124A. Zemla,38C. Zendler,20O. Zenin,127T. Zˇ enisˇ,143aZ. Zinonos,121a,121bS. Zenz,14 D. Zerwas,114G. Zevi della Porta,56Z. Zhan,32dD. Zhang,32b,hhH. Zhang,87J. Zhang,5X. Zhang,32dZ. Zhang,114 L. Zhao,107T. Zhao,137Z. Zhao,32bA. Zhemchugov,63S. Zheng,32aJ. Zhong,117B. Zhou,86N. Zhou,162Y. Zhou,150
C. G. Zhu,32dH. Zhu,41J. Zhu,86Y. Zhu,32bX. Zhuang,97V. Zhuravlov,98D. Zieminska,59R. Zimmermann,20 S. Zimmermann,20S. Zimmermann,47M. Ziolkowski,140R. Zitoun,4L. Zˇ ivkovic´,34V. V. Zmouchko,127,a
G. Zobernig,171A. Zoccoli,19a,19bM. zur Nedden,15V. Zutshi,105and L. Zwalinski29 (ATLAS Collaboration)
1University at Albany, Albany New York, USA
2Department of Physics, University of Alberta, Edmonton Alberta, Canada 3aDepartment of Physics, Ankara University, Ankara, Turkey 3bDepartment of Physics, Dumlupinar University, Kutahya, Turkey
3cDepartment of Physics, Gazi University, Ankara, Turkey
3dDivision of Physics, TOBB University of Economics and Technology, Ankara, Turkey 3eTurkish Atomic Energy Authority, Ankara, Turkey
4LAPP, CNRS/IN2P3 and Universite´ de Savoie, Annecy-le-Vieux, France 5High Energy Physics Division, Argonne National Laboratory, Argonne Illinois, USA
6Department of Physics, University of Arizona, Tucson Arizona, USA 7Department of Physics, The University of Texas at Arlington, Arlington Texas, USA
8Physics Department, University of Athens, Athens, Greece 9
Physics Department, National Technical University of Athens, Zografou, Greece
10Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan
11Institut de Fı´sica d’Altes Energies and Departament de Fı´sica de la Universitat Auto`noma de Barcelona
and ICREA, Barcelona, Spain
12aInstitute of Physics, University of Belgrade, Belgrade, Serbia 12bVinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia 13Department for Physics and Technology, University of Bergen, Bergen, Norway
14Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley California, USA 15Department of Physics, Humboldt University, Berlin, Germany
16Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland 17School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom
18aDepartment of Physics, Bogazici University, Istanbul, Turkey 18bDivision of Physics, Dogus University, Istanbul, Turkey
18cDepartment of Physics Engineering, Gaziantep University, Gaziantep, Turkey 18dDepartment of Physics, Istanbul Technical University, Istanbul, Turkey
19aINFN Sezione di Bologna, Italy 19b
Dipartimento di Fisica, Universita` di Bologna, Bologna, Italy
20Physikalisches Institut, University of Bonn, Bonn, Germany 21Department of Physics, Boston University, Boston Massachusetts, USA 22Department of Physics, Brandeis University, Waltham Massachusetts, USA 23aUniversidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil
23bFederal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil 23cFederal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil
23dInstituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil 24Physics Department, Brookhaven National Laboratory, Upton New York, USA
25aNational Institute of Physics and Nuclear Engineering, Bucharest, Romania 25bUniversity Politehnica Bucharest, Bucharest, Romania
25cWest University in Timisoara, Timisoara, Romania
26Departamento de Fı´sica, Universidad de Buenos Aires, Buenos Aires, Argentina 27Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
28Department of Physics, Carleton University, Ottawa Ontario, Canada 29CERN, Geneva, Switzerland
30Enrico Fermi Institute, University of Chicago, Chicago Illinois, USA 31aDepartamento de Fisica, Pontificia Universidad Cato´lica de Chile, Santiago, Chile 31bDepartamento de Fı´sica, Universidad Te´cnica Federico Santa Marı´a, Valparaı´so, Chile
32aInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing, China 32bDepartment of Modern Physics, University of Science and Technology of China, Anhui, China
32cDepartment of Physics, Nanjing University, Jiangsu, China 32dSchool of Physics, Shandong University, Shandong, China 33
Laboratoire de Physique Corpusculaire, Clermont Universite´ and Universite´ Blaise Pascal and CNRS/IN2P3, Aubiere Cedex, France
34Nevis Laboratory, Columbia University, Irvington New York, USA 35Niels Bohr Institute, University of Copenhagen, Kobenhavn, Denmark
36aINFN Gruppo Collegato di Cosenza, Italy
36bDipartimento di Fisica, Universita` della Calabria, Arcavata di Rende, Italy
37AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland 38The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
39Physics Department, Southern Methodist University, Dallas Texas, USA 40
Physics Department, University of Texas at Dallas, Richardson Texas, USA
41DESY, Hamburg and Zeuthen, Germany
42Institut fu¨r Experimentelle Physik IV, Technische Universita¨t Dortmund, Dortmund, Germany 43Institut fu¨r Kern- und Teilchenphysik, Technical University Dresden, Dresden, Germany
