Determination of the Strange-Quark Density of the Proton from ATLAS Measurements
of the
W ! ‘ and Z ! ‘‘ Cross Sections
G. Aad et al.* (ATLAS Collaboration)
(Received 19 March 2012; published 5 July 2012)
A QCD analysis is reported of ATLAS data on inclusive Wand Z boson production in pp collisions at the LHC, jointly with ep deep-inelastic scattering data from HERA. The ATLAS data exhibit sensitivity to the light quark sea composition and magnitude at Bjorken x 0:01. Specifically, the data support the hypothesis of a symmetric composition of the light quark sea at low x. The ratio of the strange-to-down sea quark distributions is determined to be 1:00þ0:250:28at absolute four-momentum transfer squared Q2¼
1:9 GeV2and x¼ 0:023.
DOI:10.1103/PhysRevLett.109.012001 PACS numbers: 12.38.Qk, 13.38.Be, 13.38.Dg, 14.20.Dh
Little is known about the strange-quark distribution in the proton. Flavor SUð3Þ symmetry suggests that the three light sea quark distributions are equal. However, the strange quarks may be suppressed due to their larger mass. The nucleon strange density plays an important role for a number of physics processes, ranging from measurements at proton-proton colliders of W boson pro-duction associated with charm jets [1] and of the W boson mass [2], to the formation of strange matter [3] and neu-trino interactions at ultrahigh energies [4].
Knowledge of the parton distribution functions (PDFs) of the proton comes mainly from deep-inelastic lepton proton scattering experiments covering a broad range of Q2, the absolute four-momentum transfer squared, and of
Bjorken x. The PDFs are determined from data using perturbative quantum chromodynamics (pQCD). The re-gion x& 0:01 is primarily constrained by the precise mea-surement of the proton structure function F2ðx; Q2Þ at
HERA [5], which determines a specific combination of light quark and antiquark distributions. However, the flavor composition of the total light sea, x ¼ 2xð u þ dþ sÞ, has not been determined at these x values.
The strange-quark distribution has been accessed in charged current neutrino scattering through the subpro-cesses Wþs! c and Ws! c. This measurement has been made by the NuTeV [6] and CCFR [7] experiments, providing information on the strange and antistrange den-sity at x 0:1 and Q2 10 GeV2. However, the interpre-tation of these data is sensitive to uncertainties from charm fragmentation and nuclear corrections. The analyses of Refs. [8–11] suggest strangeness suppression, with s= d& 0:5, whereas the analysis of Ref. [12] is consistent
with s= d’ 1 (unsuppressed strangeness). Recent HERMES kaon multiplicity data [13] point to a strong x dependence of the strange-quark density and a rather large value of xðs þ sÞ at x ’ 0:04 and Q2’ 1:3 GeV2.
However, the interpretation of these data depends on the knowledge of the fragmentation of strange quarks to K mesons at low Q2.
In the present Letter it is shown that the differential measurements of the inclusive W and Z boson cross sections at the LHC, recently performed by the ATLAS collaboration using 35 pb1of pp collision data recorded in 2010 [14], provide new constraints on the strange-quark distribution at high scale, Q2 MW;Z2 , which imply con-straints at low Q2through pQCD evolution. Because of the
weak couplings of the quarks involved, complementary information to F2 is provided which also constrains x. A quantity of special interest is the ratio of the (Wþþ W) and Z cross sections which is sensitive to the flavor com-position of the quark sea [12,15,16] and is rather insensi-tive to the influence of higher order pQCD corrections [17]. The inclusive electromagnetic and weak Drell-Yan scatter-ing process is theoretically well understood [18,19]. The parton distribution analysis is performed here in next-to-next-to leading order (NNLO) QCD using the ATLAS data jointly with inclusive deep-inelastic scattering data from HERA.
The combined ep cross-section measurements of H1 and ZEUS [5] cover a kinematic range of Q2 from near 1 GeV2 to above 104 GeV2 and of x from0:6 down to 104. The ATLAS data access a kinematic range pre-scribed by the boson masses, MW;Z, and the proton beam energy, Ep¼ 3:5 TeV, corresponding to Q2 ’ M2W;Z and
an x range 0:001 & x & 0:1, with a mean x ¼ MZ=2Ep¼
0:013 for the Z boson. The W and Z boson differential cross sections have been measured [14] as functions of the W decay lepton (e, ) pseudorapidity, l, and of the Z
boson rapidity, yZ, respectively, with an experimental
pre-cision of typically ð1–2Þ% in each bin. The absolute nor-malization of the three cross sections is known to within
*Full author list given at the end of the article.
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3.4%. Many systematic uncertainties on the measurements of the Wand Z boson cross sections are fully correlated. These correlations are taken into account in the analysis.
The present QCD analysis uses theHERAFITTER frame-work [5,20,21]. The light quark coefficient functions are calculated to NNLO as implemented inQCDNUM[22]. The contributions of heavy quarks are calculated in the general-mass variable-flavor-number scheme of Refs. [23,24]. The electroweak parameters and corrections relevant for the W and Z boson production processes are determined follow-ing the procedure described in Ref. [14], and the results are cross-checked between theFEWZ[19] and theDYNNLO[18] programs. The HERAFITTER package uses the APPLGRID
code [25] interfaced to the MCFM program [26] for fast calculation of the differential W and Z boson cross sections at NLO and a K-factor technique to correct from NLO to NNLO predictions. The data are compared to the theory using the 2function defined in Refs. [27–29].
The evolution equations yield the PDFs at any value of Q2given that they are parametrized as functions of x at an
initial scale Q2
0. In the present analysis, this scale is chosen
to be Q20 ¼ 1:9 GeV2 such that it is below the charm mass threshold m2
c. The heavy quark masses are chosen to be
mc ¼ 1:4 GeV and mb¼ 4:75 GeV. The strong coupling
constant is fixed to SðMZÞ ¼ 0:1176, as in Ref. [5]. A
minimum Q2 cut of Q2
min 7:5 GeV2 is imposed on the
HERA data.
The quark distributions at the initial scale are repre-sented by the generic form
xqiðxÞ ¼ AixBið1 xÞCiP
iðxÞ; (1)
where PiðxÞ denotes polynomials in powers of x. The
parametrized quark distributions, xqi, are chosen to be
the valence quark distributions (xuv, xdv) and the light
antiquark distributions (xu, x d, xs). The gluon distribution is parametrized with the more flexible form xgðxÞ ¼ AgxBgð1 xÞCgPgðxÞ A0gxB
0
gð1 xÞC0g, where C0
g is set
to 25 to suppress negative contributions at high x. The parameters Auvand Advare fixed using the quark counting
rule and Ag using the momentum sum rule. The normal-ization and slope parameters, A and B, of u and d are set equal such that xu¼ x d at x ! 0. Terms are added in the polynomial expansion PiðxÞ only if required by the data,
following the procedure described in Ref. [5]. This leads to one additional term, PuvðxÞ ¼ 1 þ Euvx2.
Two types of NNLO fit, termed epWZ, are performed with different treatments of strangeness. First, the strange-quark distribution is fully coupled to the down sea strange-quark distribution and suppressed by fixing s= d¼ 0:5 at the initial scale Q2
0 (‘‘fixed s fit’’) as suggested by
Refs. [5,8–11]. In a second fit, xs is parametrized as in Eq. (1), with Ps¼ 1 and Bs¼ Bd, leaving two free
strangeness parameters, Asand Cs(‘‘frees fit’’). By default
it is assumed that xs¼ xs.
Both fits result in good overall 2=N
DF values of
546:1=567 with 13 free parameters, for fixed s, and of 538:4=565 with 15 free parameters, for free s. For the fixed s fit, the partial 2 of the ATLAS data is 44.5 for 30
data points. This improves significantly to 33.9 for the fit with frees. This fit determines the value of rs¼0:5ðsþ sÞ= d
to be
rs¼ 1:00 0:20 exp0:07modþ0:100:15parþ0:060:07S 0:08th;
(2) at Q2
0 and x¼ 0:023, the x value, which corresponds to
x¼ 0:013 at Q2 ¼ MZ2 as a result of QCD evolution. The combined result is rs¼ 1:00þ0:250:28.
The uncertainty of rs, Eq. (2), is dominated by the experimental (exp) uncertainty, which is mostly driven by the statistical and systematic uncertainties of the W and Z cross-section measurements. The model (mod) un-certainty includes effects due to variations (1:25 < mc<
1:55 GeV and 4:5 < mb< 5:0 GeV) of the charm and
beauty quark masses following Ref. [30], of the minimum Q2 cut value (5 < Q2
min< 10 GeV2), and the value of the
starting scale (Q2
0 lowered to 1:5 GeV2). The largest
con-tribution to the model uncertainty of0:05 comes from the variation of the charm quark mass. The parametrization (par) uncertainty corresponds to the envelope of the results obtained with the polynomials Pi, in Eq. (1), extended by
one or two terms, resulting in somewhat different parton distributions with similar 2 as for the nominal fit. The parametrization uncertainty also includes a fit with Bsfree. The s uncertainty corresponds to a variation of sðMZÞ from 0.114 to 0.121. Finally, a theoretical (th) uncertainty is assessed by comparing the DYNNLO and FEWZ predic-tions on the Z, Wþ, and Wfiducial cross sections, which agree at the level of 0.2, 0.5, and 1.0%, respectively. In addition, remaining missing pure electroweak corrections may alter the QCD predictions at the per-thousand level. Both effects are well covered by an uncertainty of 1% on the W=Z cross-section ratio and this results in a theoretical uncertainty on rsof 0.08.
The fits impose small shifts, typically much smaller than 1 standard deviation, on the correlated systematic uncer-tainties of the data. The global normalization is observed to be shifted upward for both fits by about the size of the luminosity measurement uncertainty. The Wand Z cross-section measurements are compared in Fig.1to the NNLO fit results, after these shifts are applied to the predictions. Also shown are the ratios of the fits with free s and with fixed s. It is apparent that the enhanced strange-quark fraction in the free s fit has no significant effect on the prediction of the ldistributions for both the Wþand W
decay leptons, while it leads to an improvement in the prediction of the yZ distribution. An improvement is also
observed in the description of the ratio of the (Wþþ W) to the Z boson cross sections in the fiducial phase space. This is predicted to be 11.10 in the fit with fixed s, while
the measured value of 10:70 0:15 is almost exactly reproduced in the fit with free s, which gives a value of 10.74.
In order to check the robustness of the present result for rs, a series of cross-checks is performed. A fit without
allowing an adjustment of the correlated errors yields a value of rs¼ 0:97 0:26 exp, in good agreement with
Eq. (2). A fit with identical input parameters is repeated at NLO and also yields a consistent result: rs¼ 1:03 0:19 exp. If this NLO fit is performed with a massless heavy quark treatment then rs¼ 1:05 0:19 exp is ob-tained. In a separate NLO study, the constraint ðx u x dÞ ! 0 for x ! 0 is relaxed. The x dðxÞ distribution is found to be consistent with xuðxÞ, albeit with large uncertainties ( 15% at x 0:01 and Q2
0). The fraction
of strangeness is again consistent with unity, rs¼ 0:96
0:25 exp. Finally the data are fitted, to NNLO, with sepa-rate strange and antistrange normalizations. The resulting value of rs is consistent with unity and the ratio s=s is
0:93 0:15 exp at x ¼ 0:023 and Q2 ¼ Q2 0.
W, Z cross-section measurements performed at the Tevatron may potentially have sensitivity to rs similar to that of the ATLAS data. A NLO fit to the HERA with the CDF W asymmetry [31] and Z rapidity [32] data gives rs¼
0:66 0:29 exp at a mean x of about 0.081. This is con-sistent within uncertainties with both suppressed strange-ness and with the present result. A NLO fit to the combined HERA, ATLAS, and CDF data yields rs¼ 0:95
0:17 exp.
The provision of the full differential cross sections for both Wþ, W, and Z boson production, besides the ep cross sections, is essential for the determination of xs: if the ATLAS Z cross-section data are fitted together with the ATLAS W charge asymmetry data, rather than with the separate Wþ and W cross-section measurements, a less precise result is obtained with rs¼ 0:92 0:31 exp.
In Fig. 2 the present result for rs is compared with
predictions obtained from four global PDF determinations.
The CT10 (NLO) [12] determination gives a large fraction consistent with the present result. On the other hand, the MSTW08 [8] and ABKM09 [9] determinations give a much lower value of rs’ 0:5, and the NNPDF2.1 [10,11]
result of rs’ 0:25 is even lower.
The enlarged fraction of the strange-quark sea leads to a decrease of the down and up quark sea densities at the initial scale Q20, because xs, x d, and xu are tied together at low x by the precise F2 data. In compensation for the increase of xs, the x d and xu distributions are diminished by’ 10%. The total sea, x, is correspondingly enhanced by’ 8%, as illustrated in Fig.3.
The result on rs, Eq. (2), evolves to
rs¼ 1:000:07exp0:03modþ0:040:06par 0:02S0:03th
(3)
at Q2 ¼ M2
Z and x¼ 0:013, corresponding to a value of
rsð0:013; M2ZÞ ¼ 1:00þ0:090:10, which is more than twice as
precise as at the initial scale Q2
0. Uncertainties are smaller
at Q2 ¼ M2
Zbecause the gluon splitting probability into qq
pairs is flavor independent, thus reducing any initial flavor asymmetries. This also causes rsto increase from 0.5 at Q20
to a value of about 0.8 at Q2¼ M2
Z in the fixed s fit.
s r -0.2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 ABKM09 NNPDF2.1 MSTW08 CT10 (NLO) total uncertainty experimental uncertainty ATLAS , x=0.023 2 = 1.9 GeV 2 Q epWZ free s
FIG. 2 (color online). Predictions for the ratio rs¼ 0:5ðs þ
sÞ= d, at Q2¼ 1:9 GeV2, x¼ 0:023. Points: global fit results
using the PDF uncertainties as quoted; bands: this analysis; inner band, experimental uncertainty; outer band, total uncertainty.
| l η | 0 0.5 1 1.5 2 2.5 s free/fixed 0.981 1.02 | [pb]l η /d|σ d 500 550 600 650 700 -1 L dt = 33-36 pb
∫
l ν + l → + W = 7 TeV) s Data 2010 ( stat. uncertainty) ⊕ (uncorr. sys. s epWZ fixed s epWZ free ATLAS | l η | 0 0.5 1 1.5 2 2.5 s free/fixed 0.981 1.02 | [pb]l η /d|σ d 350 400 450 500 -1 L dt = 33-36 pb∫
l ν l → -W = 7 TeV) s Data 2010 ( stat. uncertainty) ⊕ (uncorr. sys. s epWZ fixed s epWZ free ATLAS | Z |y 0 0.5 1 1.5 2 2.5 3 3.5 s free/fixed 0.981 1.02 | [pb] Z /d|yσ d 60 80 100 120 140 -1 L dt = 33-36 pb∫
-l + l → Z = 7 TeV) s Data 2010 ( stat. uncertainty) ⊕ (uncorr. sys. s epWZ fixed s epWZ free ATLASFIG. 1 (color online). Differential d=dj‘þj (left) and d=dj‘j (middle) cross-section measurements for W ! ‘ and d=djyZj
cross-section measurement for d=djyZj (right). The error bars represent the statistical and uncorrelated systematic uncertainties added in quadrature while the theoretical curves are adjusted to the correlated error shifts (see text). The NNLO fit results with free and fixed strangeness are also indicated, and their ratios are shown in the panels below the cross-section plots.
In summary, a NNLO pQCD analysis is presented of the first differential ATLAS W, Z pp cross sections with HERA ep data. The W, Z measurements introduce a novel sensitivity to the strange-quark density at x 0:01, which is exploited here. The ratio of the strange-to-down sea quark density is found to be rs¼ 1:00þ0:250:28, at Bjorken
x¼ 0:023 and the initial scale of the QCD fit Q2 0 ¼
1:9 GeV2. This is consistent with the prediction that the
light quark sea at low x is flavor symmetric. A consequence of this initial observation is that the total sea, x ¼ 2xð u þ
dþ sÞ, is enhanced by about 8%, as compared to the result when the strange quark is suppressed to half the magnitude of the down sea quark.
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 ac-knowledge 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 com-puting 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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S. Behar Harpaz,151P. K. Behera,62M. Beimforde,98C. Belanger-Champagne,84P. J. Bell,48W. H. Bell,48 G. Bella,152L. Bellagamba,19aF. Bellina,29M. Bellomo,29A. Belloni,56O. Beloborodova,106,gK. Belotskiy,95 O. Beltramello,29S. Ben Ami,151O. Benary,152D. Benchekroun,134aC. Benchouk,82M. Bendel,80N. 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,145aV. Boisvert,75T. Bold,37 V. Boldea,25aN. M. Bolnet,135M. Bona,74V. G. Bondarenko,95M. Bondioli,162M. Boonekamp,135C. N. Booth,138
S. Bordoni,77C. Borer,16A. Borisov,127G. Borissov,70I. Borjanovic,12aM. Borri,81S. Borroni,86
V. Bortolotto,133a,133bK. Bos,104D. Boscherini,19aM. Bosman,11H. Boterenbrood,104D. Botterill,128J. Bouchami,92 J. Boudreau,122E. V. Bouhova-Thacker,70D. Boumediene,33C. Bourdarios,114N. Bousson,82A. Boveia,30J. Boyd,29
G. W. Brandenburg,56A. Brandt,7G. Brandt,117O. Brandt,53U. Bratzler,155B. Brau,83J. E. Brau,113H. M. Braun,173 B. Brelier,157J. Bremer,29R. Brenner,165S. Bressler,170D. Britton,52F. M. Brochu,27I. Brock,20R. Brock,87 T. J. Brodbeck,70E. Brodet,152F. Broggi,88aC. Bromberg,87J. Bronner,98G. Brooijmans,34W. K. Brooks,31b G. Brown,81H. Brown,7P. A. Bruckman de Renstrom,38D. Bruncko,143bR. Bruneliere,47S. Brunet,60A. Bruni,19a
G. Bruni,19aM. Bruschi,19aT. Buanes,13Q. Buat,54F. Bucci,48J. Buchanan,117N. J. Buchanan,2P. Buchholz,140 R. M. Buckingham,117A. G. Buckley,45S. I. Buda,25aI. A. Budagov,64B. Budick,107V. Bu¨scher,80L. Bugge,116
O. Bulekov,95M. Bunse,42T. Buran,116H. Burckhart,29S. Burdin,72T. Burgess,13S. Burke,128E. Busato,33 P. Bussey,52C. P. Buszello,165F. Butin,29B. Butler,142J. M. Butler,21C. M. Buttar,52J. M. Butterworth,76 W. Buttinger,27S. Cabrera Urba´n,166D. Caforio,19a,19bO. Cakir,3aP. Calafiura,14G. Calderini,77P. Calfayan,97 R. Calkins,105L. P. Caloba,23aR. Caloi,131a,131bD. Calvet,33S. Calvet,33R. Camacho Toro,33P. Camarri,132a,132b
M. Cambiaghi,118a,118bD. Cameron,116L. M. Caminada,14S. Campana,29M. Campanelli,76V. Canale,101a,101b F. Canelli,30,iiA. Canepa,158aJ. Cantero,79L. Capasso,101a,101bM. D. M. Capeans Garrido,29I. Caprini,25a M. Caprini,25aD. Capriotti,98M. Capua,36a,36bR. Caputo,80C. Caramarcu,24R. Cardarelli,132aT. Carli,29 G. Carlino,101aL. Carminati,88a,88bB. Caron,84S. Caron,103G. D. Carrillo Montoya,171A. A. Carter,74J. R. Carter,27
J. Carvalho,123a,hD. Casadei,107M. P. Casado,11M. Cascella,121a,121bC. Caso,49a,49b,a
A. M. Castaneda Hernandez,171E. Castaneda-Miranda,171V. Castillo Gimenez,166N. F. Castro,123aG. Cataldi,71a F. Cataneo,29A. Catinaccio,29J. R. Catmore,29A. Cattai,29G. Cattani,132a,132bS. Caughron,87D. Cauz,163a,163c
P. Cavalleri,77D. Cavalli,88aM. Cavalli-Sforza,11V. Cavasinni,121a,121bF. Ceradini,133a,133bA. S. Cerqueira,23b A. Cerri,29L. Cerrito,74F. Cerutti,46S. A. Cetin,18bF. Cevenini,101a,101bA. Chafaq,134aD. Chakraborty,105K. Chan,2
B. Chapleau,84J. D. Chapman,27J. W. Chapman,86E. Chareyre,77D. G. Charlton,17V. Chavda,81
C. A. Chavez Barajas,29S. Cheatham,84S. Chekanov,5S. V. Chekulaev,158aG. A. Chelkov,64M. A. Chelstowska,103 C. Chen,63H. Chen,24S. Chen,32cT. Chen,32cX. Chen,171S. Cheng,32aA. Cheplakov,64V. F. Chepurnov,64 R. Cherkaoui El Moursli,134eV. Chernyatin,24E. Cheu,6S. L. Cheung,157L. Chevalier,135G. Chiefari,101a,101b
L. Chikovani,50aJ. T. Childers,29A. Chilingarov,70G. Chiodini,71aA. S. Chisholm,17M. V. Chizhov,64 G. Choudalakis,30S. Chouridou,136I. A. Christidi,76A. Christov,47D. Chromek-Burckhart,29M. L. Chu,150 J. Chudoba,124G. Ciapetti,131a,131bK. Ciba,37A. K. Ciftci,3aR. Ciftci,3aD. Cinca,33V. Cindro,73M. D. Ciobotaru,162
C. Ciocca,19aA. Ciocio,14M. Cirilli,86M. Citterio,88aM. Ciubancan,25aA. Clark,48P. J. Clark,45W. Cleland,122 J. C. Clemens,82B. Clement,54C. Clement,145a,145bR. W. Clifft,128Y. Coadou,82M. Cobal,163a,163cA. Coccaro,171 J. Cochran,63P. Coe,117J. G. Cogan,142J. Coggeshall,164E. Cogneras,176J. Colas,4A. P. Colijn,104N. J. Collins,17 C. Collins-Tooth,52J. Collot,54G. Colon,83P. Conde Muin˜o,123aE. Coniavitis,117M. C. Conidi,11M. Consonni,103 V. Consorti,47S. Constantinescu,25aC. Conta,118a,118bF. Conventi,101a,iJ. Cook,29M. Cooke,14B. D. Cooper,76
A. M. Cooper-Sarkar,117K. Copic,14T. Cornelissen,173M. Corradi,19aF. Corriveau,84,jA. Cortes-Gonzalez,164 G. Cortiana,98G. Costa,88aM. J. Costa,166D. Costanzo,138T. Costin,30D. Coˆte´,29R. Coura Torres,23a 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,60H. 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,37T. Dai,86C. Dallapiccola,83M. Dam,35M. Dameri,49a,49bD. S. Damiani,136 H. O. Danielsson,29D. Dannheim,98V. Dao,48G. Darbo,49aG. L. Darlea,25bW. Davey,20T. Davidek,125 N. Davidson,85R. Davidson,70E. Davies,117,dM. Davies,92A. R. Davison,76Y. Davygora,57aE. Dawe,141 I. Dawson,138J. W. Dawson,5,aR. K. Daya-Ishmukhametova,22K. De,7R. de Asmundis,101aS. De Castro,19a,19b P. E. De Castro Faria Salgado,24S. De Cecco,77J. de Graat,97N. De Groot,103P. de Jong,104C. De La Taille,114
H. De la Torre,79B. De Lotto,163a,163cL. de Mora,70L. De Nooij,104D. De Pedis,131aA. De Salvo,131a U. De Sanctis,163a,163cA. De Santo,148J. B. De Vivie De Regie,114S. Dean,76W. J. Dearnaley,70R. Debbe,24
C. Debenedetti,45D. V. Dedovich,64J. Degenhardt,119M. Dehchar,117C. Del Papa,163a,163cJ. Del Peso,79 T. Del Prete,121a,121bT. Delemontex,54M. Deliyergiyev,73A. Dell’Acqua,29L. Dell’Asta,21M. Della Pietra,101a,i D. della Volpe,101a,101bM. Delmastro,4N. Delruelle,29P. A. Delsart,54C. Deluca,147S. Demers,174M. Demichev,64
B. Demirkoz,11,kJ. Deng,162S. P. Denisov,127D. Derendarz,38J. E. Derkaoui,134dF. Derue,77P. Dervan,72 K. Desch,20E. Devetak,147P. O. Deviveiros,104A. Dewhurst,128B. DeWilde,147S. Dhaliwal,157R. Dhullipudi,24,l A. Di Ciaccio,132a,132bL. Di Ciaccio,4A. Di Girolamo,29B. Di Girolamo,29S. Di Luise,133a,133bA. Di Mattia,171 B. Di Micco,29R. Di Nardo,46A. Di Simone,132a,132bR. Di Sipio,19a,19bM. A. Diaz,31aF. Diblen,18cE. B. Diehl,86
J. Dietrich,41T. A. Dietzsch,57aS. Diglio,85K. Dindar Yagci,39J. Dingfelder,20C. Dionisi,131a,131bP. Dita,25a S. Dita,25aF. Dittus,29F. Djama,82T. Djobava,50bM. A. B. do Vale,23cA. Do Valle Wemans,123aT. K. O. Doan,4
M. Dobbs,84R. Dobinson,29,aD. Dobos,29E. Dobson,29,mJ. Dodd,34C. Doglioni,48T. Doherty,52Y. Doi,65,a J. Dolejsi,125I. Dolenc,73Z. Dolezal,125B. A. Dolgoshein,95,aT. Dohmae,154M. Donadelli,23dM. Donega,119 J. Donini,33J. Dopke,29A. Doria,101aA. Dos Anjos,171M. Dosil,11A. Dotti,121a,121bM. T. Dova,69J. D. Dowell,17
A. D. Doxiadis,104A. T. Doyle,52Z. Drasal,125J. Drees,173N. Dressnandt,119H. Drevermann,29C. Driouichi,35 M. Dris,9J. Dubbert,98S. Dube,14E. Duchovni,170G. Duckeck,97A. Dudarev,29F. Dudziak,63M. Du¨hrssen,29 I. P. Duerdoth,81L. Duflot,114M-A. Dufour,84M. Dunford,29H. Duran Yildiz,3aR. Duxfield,138M. Dwuznik,37
F. Dydak,29M. Du¨ren,51W. L. Ebenstein,44J. Ebke,97S. Eckweiler,80K. Edmonds,80C. A. Edwards,75 N. C. Edwards,52W. Ehrenfeld,41T. Ehrich,98T. Eifert,142G. Eigen,13K. Einsweiler,14E. Eisenhandler,74 T. Ekelof,165M. El Kacimi,134cM. Ellert,165S. Elles,4F. Ellinghaus,80K. Ellis,74N. Ellis,29J. Elmsheuser,97 M. Elsing,29D. Emeliyanov,128R. Engelmann,147A. Engl,97B. Epp,61A. Eppig,86J. Erdmann,53A. Ereditato,16
D. Eriksson,145aJ. Ernst,1M. Ernst,24J. Ernwein,135D. Errede,164S. Errede,164E. Ertel,80M. Escalier,114 C. Escobar,122X. Espinal Curull,11B. Esposito,46F. Etienne,82A. I. Etienvre,135E. Etzion,152D. Evangelakou,53
H. Evans,60L. Fabbri,19a,19bC. Fabre,29R. M. Fakhrutdinov,127S. Falciano,131aY. Fang,171M. Fanti,88a,88b A. Farbin,7A. Farilla,133aJ. Farley,147T. Farooque,157S. M. Farrington,117P. Farthouat,29P. Fassnacht,29 D. Fassouliotis,8B. Fatholahzadeh,157A. Favareto,88a,88bL. Fayard,114S. Fazio,36a,36bR. Febbraro,33P. Federic,143a
O. L. Fedin,120W. Fedorko,87M. Fehling-Kaschek,47L. Feligioni,82D. Fellmann,5C. Feng,32dE. J. Feng,30 A. B. Fenyuk,127J. Ferencei,143bJ. Ferland,92W. Fernando,108S. Ferrag,52J. Ferrando,52V. Ferrara,41A. Ferrari,165
P. Ferrari,104R. Ferrari,118aD. E. Ferreira de Lima,52A. Ferrer,166M. L. Ferrer,46D. Ferrere,48C. Ferretti,86 A. Ferretto Parodi,49a,49bM. Fiascaris,30F. Fiedler,80A. Filipcˇicˇ,73A. Filippas,9F. Filthaut,103M. Fincke-Keeler,168 M. C. N. Fiolhais,123a,hL. Fiorini,166A. Firan,39G. Fischer,41P. Fischer,20M. J. Fisher,108M. Flechl,47I. Fleck,140
J. Fleckner,80P. Fleischmann,172S. Fleischmann,173T. Flick,173A. Floderus,78L. R. Flores Castillo,171 M. J. Flowerdew,98M. Fokitis,9T. Fonseca Martin,16D. A. Forbush,137A. Formica,135A. Forti,81D. Fortin,158a
J. M. Foster,81D. Fournier,114A. Foussat,29A. J. Fowler,44K. Fowler,136H. Fox,70P. Francavilla,11 S. Franchino,118a,118bD. Francis,29T. Frank,170M. Franklin,56S. Franz,29M. Fraternali,118a,118bS. Fratina,119 S. T. French,27F. Friedrich,43R. Froeschl,29D. Froidevaux,29J. A. Frost,27C. Fukunaga,155E. Fullana Torregrosa,29 J. Fuster,166C. Gabaldon,29O. Gabizon,170T. Gadfort,24S. Gadomski,48G. Gagliardi,49a,49bP. Gagnon,60C. Galea,97
E. J. Gallas,117V. Gallo,16B. J. Gallop,128P. Gallus,124K. K. Gan,108Y. S. Gao,142,fV. A. Gapienko,127 A. Gaponenko,14F. Garberson,174M. Garcia-Sciveres,14C. Garcı´a,166J. E. Garcı´a Navarro,166R. W. Gardner,30 N. Garelli,29H. Garitaonandia,104V. Garonne,29J. Garvey,17C. Gatti,46G. Gaudio,118aB. Gaur,140L. Gauthier,135 I. L. Gavrilenko,93C. Gay,167G. Gaycken,20J-C. Gayde,29E. N. Gazis,9P. Ge,32dC. N. P. Gee,128D. A. A. Geerts,104
Ch. Geich-Gimbel,20K. Gellerstedt,145a,145bC. Gemme,49aA. Gemmell,52M. H. Genest,54S. Gentile,131a,131b M. George,53S. George,75P. Gerlach,173A. Gershon,152C. Geweniger,57aH. Ghazlane,134bN. Ghodbane,33 B. Giacobbe,19aS. Giagu,131a,131bV. Giakoumopoulou,8V. Giangiobbe,11F. Gianotti,29B. Gibbard,24A. Gibson,157 S. M. Gibson,29L. M. Gilbert,117V. Gilewsky,90D. Gillberg,28A. R. Gillman,128D. M. Gingrich,2,eJ. Ginzburg,152 N. Giokaris,8M. P. Giordani,163cR. Giordano,101a,101bF. M. Giorgi,15P. Giovannini,98P. F. Giraud,135D. Giugni,88a M. Giunta,92P. Giusti,19aB. K. Gjelsten,116L. K. Gladilin,96C. Glasman,79J. Glatzer,47A. Glazov,41K. W. Glitza,173
G. L. Glonti,64J. R. Goddard,74J. Godfrey,141J. Godlewski,29M. Goebel,41T. Go¨pfert,43C. Goeringer,80 C. Go¨ssling,42T. 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,38S. A. Gorokhov,127V. N. Goryachev,127B. Gosdzik,41M. Gosselink,104M. I. Gostkin,64 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,lK. Gregersen,35I. M. Gregor,41P. Grenier,142J. Griffiths,137N. Grigalashvili,64
A. A. Grillo,136S. Grinstein,11Y. V. Grishkevich,96J.-F. Grivaz,114M. Groh,98E. Gross,170J. Grosse-Knetter,53 J. Groth-Jensen,170K. Grybel,140V. J. Guarino,5D. Guest,174C. Guicheney,33A. Guida,71a,71bS. Guindon,53 H. Guler,84,nJ. Gunther,124B. Guo,157J. Guo,34A. Gupta,30Y. Gusakov,64V. N. Gushchin,127P. Gutierrez,110
N. Guttman,152O. Gutzwiller,171C. Guyot,135C. Gwenlan,117C. B. Gwilliam,72A. Haas,142S. Haas,29C. Haber,14 H. K. Hadavand,39D. R. Hadley,17P. Haefner,98F. Hahn,29S. Haider,29Z. Hajduk,38H. Hakobyan,175D. Hall,117 J. Haller,53K. Hamacher,173P. Hamal,112M. Hamer,53A. Hamilton,144b,oS. Hamilton,160H. Han,32aL. Han,32b K. Hanagaki,115K. Hanawa,159M. Hance,14C. Handel,80P. Hanke,57aJ. R. Hansen,35J. B. Hansen,35J. D. Hansen,35
P. H. Hansen,35P. Hansson,142K. Hara,159G. A. Hare,136T. Harenberg,173S. Harkusha,89D. Harper,86 R. D. Harrington,45O. M. Harris,137K. Harrison,17J. Hartert,47F. Hartjes,104T. Haruyama,65A. Harvey,55 S. Hasegawa,100Y. Hasegawa,139S. Hassani,135M. Hatch,29D. Hauff,98S. Haug,16M. Hauschild,29R. Hauser,87
M. Havranek,20B. M. Hawes,117C. M. Hawkes,17R. J. Hawkings,29A. D. Hawkins,78D. Hawkins,162 T. Hayakawa,66T. Hayashi,159D. Hayden,75H. S. Hayward,72S. J. Haywood,128E. Hazen,21M. He,32dS. J. Head,17
V. Hedberg,78L. Heelan,7S. Heim,87B. Heinemann,14S. Heisterkamp,35L. Helary,4C. Heller,97M. Heller,29 S. Hellman,145a,145bD. Hellmich,20C. Helsens,11R. C. W. Henderson,70M. Henke,57aA. Henrichs,53 A. M. Henriques Correia,29S. Henrot-Versille,114F. Henry-Couannier,82C. Hensel,53T. Henß,173C. M. Hernandez,7
Y. Herna´ndez Jime´nez,166R. Herrberg,15A. D. Hershenhorn,151G. 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,66T. 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,64,pJ. Huston,87J. Huth,56G. Iacobucci,48G. Iakovidis,9M. Ibbotson,81 I. Ibragimov,140R. Ichimiya,66L. Iconomidou-Fayard,114J. Idarraga,114P. Iengo,101aO. Igonkina,104Y. Ikegami,65
M. Ikeno,65Y. Ilchenko,39D. Iliadis,153N. Ilic,157M. Imori,154T. Ince,20J. Inigo-Golfin,29P. Ioannou,8 M. Iodice,133aV. Ippolito,131a,131bA. Irles Quiles,166C. Isaksson,165A. Ishikawa,66M. Ishino,67
R. Ishmukhametov,39C. Issever,117S. Istin,18aA. V. Ivashin,127W. Iwanski,38H. Iwasaki,65J. M. Izen,40V. Izzo,101a B. Jackson,119J. N. Jackson,72P. Jackson,142M. R. Jaekel,29V. Jain,60K. Jakobs,47S. Jakobsen,35J. Jakubek,126
D. K. Jana,110E. Jankowski,157E. Jansen,76H. Jansen,29A. Jantsch,98M. Janus,20G. Jarlskog,78L. Jeanty,56 K. Jelen,37I. Jen-La Plante,30P. Jenni,29A. Jeremie,4P. Jezˇ,35S. Je´ze´quel,4M. K. Jha,19aH. Ji,171W. Ji,80J. Jia,147
Y. Jiang,32bM. Jimenez Belenguer,41G. Jin,32bS. Jin,32aO. Jinnouchi,156M. D. Joergensen,35D. Joffe,39 L. G. Johansen,13M. Johansen,145a,145bK. E. Johansson,145aP. Johansson,138S. Johnert,41K. A. Johns,6 K. Jon-And,145a,145bG. Jones,117R. W. L. Jones,70T. W. Jones,76T. J. Jones,72O. Jonsson,29C. Joram,29 P. M. Jorge,123aJ. Joseph,14J. Jovicevic,146T. Jovin,12bX. Ju,171C. A. Jung,42R. M. Jungst,29V. Juranek,124 P. Jussel,61A. Juste Rozas,11V. V. Kabachenko,127S. Kabana,16M. Kaci,166A. Kaczmarska,38P. Kadlecik,35
M. Kado,114H. Kagan,108M. Kagan,56S. Kaiser,98E. Kajomovitz,151S. Kalinin,173L. V. Kalinovskaya,64 S. Kama,39N. Kanaya,154M. Kaneda,29S. Kaneti,27T. Kanno,156V. A. Kantserov,95J. Kanzaki,65B. Kaplan,174 A. Kapliy,30J. Kaplon,29D. Kar,43M. Karagounis,20M. Karagoz,117M. Karnevskiy,41K. Karr,5V. Kartvelishvili,70
A. N. Karyukhin,127L. Kashif,171G. Kasieczka,57bR. D. Kass,108A. Kastanas,13M. Kataoka,4Y. Kataoka,154 E. Katsoufis,9J. Katzy,41V. Kaushik,6K. Kawagoe,66T. Kawamoto,154G. Kawamura,80M. S. Kayl,104 V. A. Kazanin,106M. Y. Kazarinov,64R. Keeler,168R. Kehoe,39M. Keil,53G. D. Kekelidze,64J. Kennedy,97 C. J. Kenney,142M. Kenyon,52O. Kepka,124N. Kerschen,29B. P. Kersˇevan,73S. Kersten,173K. Kessoku,154
J. Keung,157F. Khalil-zada,10H. Khandanyan,164A. Khanov,111D. Kharchenko,64A. Khodinov,95 A. G. Kholodenko,127A. Khomich,57aT. J. Khoo,27G. Khoriauli,20A. Khoroshilov,173N. Khovanskiy,64 V. Khovanskiy,94E. Khramov,64J. Khubua,50bH. Kim,145a,145bM. S. Kim,2S. H. Kim,159N. Kimura,169O. Kind,15
B. T. King,72M. King,66R. S. B. King,117J. Kirk,128L. E. Kirsch,22A. E. Kiryunin,98T. Kishimoto,66 D. Kisielewska,37T. Kittelmann,122A. M. Kiver,127E. Kladiva,143bJ. Klaiber-Lodewigs,42M. Klein,72U. Klein,72 K. Kleinknecht,80M. Klemetti,84A. Klier,170P. Klimek,145a,145bA. Klimentov,24R. Klingenberg,42J. A. Klinger,81 E. B. Klinkby,35T. Klioutchnikova,29P. F. Klok,103S. Klous,104E.-E. Kluge,57aT. Kluge,72P. Kluit,104S. Kluth,98
N. S. Knecht,157E. Kneringer,61J. Knobloch,29E. B. F. G. Knoops,82A. Knue,53B. R. Ko,44T. Kobayashi,154 M. Kobel,43M. Kocian,142P. Kodys,125K. Ko¨neke,29A. C. Ko¨nig,103S. Koenig,80L. Ko¨pke,80F. Koetsveld,103
T. Kokott,20G. M. Kolachev,106H. Kolanoski,15V. Kolesnikov,64I. Koletsou,88aJ. Koll,87M. Kollefrath,47 S. D. Kolya,81A. A. Komar,93Y. Komori,154T. Kondo,65T. Kono,41,qA. I. Kononov,47R. Konoplich,107,r N. Konstantinidis,76A. Kootz,173S. Koperny,37K. Korcyl,38K. Kordas,153V. Koreshev,127A. Korn,117A. Korol,106
I. Korolkov,11E. V. Korolkova,138V. A. Korotkov,127O. Kortner,98S. Kortner,98V. V. Kostyukhin,20 M. J. Kotama¨ki,29S. Kotov,98V. M. Kotov,64A. Kotwal,44C. Kourkoumelis,8V. Kouskoura,153A. Koutsman,158a
R. Kowalewski,168T. Z. Kowalski,37W. Kozanecki,135A. S. Kozhin,127V. Kral,126V. A. Kramarenko,96 G. Kramberger,73M. W. Krasny,77A. Krasznahorkay,107J. Kraus,87J. K. Kraus,20A. Kreisel,152F. Krejci,126 J. Kretzschmar,72N. Krieger,53P. Krieger,157K. Kroeninger,53H. Kroha,98J. Kroll,119J. Kroseberg,20J. Krstic,12a U. Kruchonak,64H. Kru¨ger,20T. Kruker,16N. Krumnack,63Z. V. Krumshteyn,64A. Kruth,20T. Kubota,85S. Kuday,3a
S. Kuehn,47A. Kugel,57cT. Kuhl,41D. Kuhn,61V. Kukhtin,64Y. Kulchitsky,89S. Kuleshov,31bC. Kummer,97 M. Kuna,77N. Kundu,117J. Kunkle,119A. Kupco,124H. Kurashige,66M. 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,64 R. Lafaye,4B. Laforge,77T. Lagouri,79S. Lai,47E. Laisne,54M. Lamanna,29C. L. Lampen,6W. Lampl,6
E. 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,64O. Le Dortz,77 E. Le Guirriec,82C. Le Maner,157E. Le Menedeu,9C. 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,9C. Leroy,92J-R. Lessard,168J. Lesser,145aC. G. Lester,27A. Leung Fook Cheong,171
J. Leveˆque,4D. Levin,86L. J. Levinson,170M. S. Levitski,127A. Lewis,117G. H. Lewis,107A. M. Leyko,20 M. Leyton,15B. Li,82H. Li,171,sS. Li,32b,tX. Li,86Z. Liang,117,uH. Liao,33B. Liberti,132aP. Lichard,29 M. Lichtnecker,97K. Lie,164W. Liebig,13R. Lifshitz,151C. Limbach,20A. Limosani,85M. Limper,62S. C. Lin,150,v F. Linde,104J. T. Linnemann,87E. Lipeles,119L. Lipinsky,124A. Lipniacka,13T. M. Liss,164D. Lissauer,24A. Lister,48
A. M. Litke,136C. Liu,28D. Liu,150H. Liu,86J. B. Liu,86M. Liu,32bY. Liu,32bM. Livan,118a,118b S. S. A. Livermore,117A. Lleres,54J. Llorente Merino,79S. L. Lloyd,74E. Lobodzinska,41P. Loch,6 W. S. Lockman,136T. Loddenkoetter,20F. K. Loebinger,81A. Loginov,174C. W. Loh,167T. Lohse,15K. Lohwasser,47
M. Lokajicek,124J. Loken,117V. P. Lombardo,4R. E. Long,70L. Lopes,123aD. Lopez Mateos,56J. Lorenz,97 N. Lorenzo Martinez,114M. Losada,161P. Loscutoff,14F. Lo Sterzo,131a,131bM. J. Losty,158aX. Lou,40A. Lounis,114
K. F. Loureiro,161J. Love,21P. A. Love,70A. J. Lowe,142,fF. Lu,32aH. J. Lubatti,137C. Luci,131a,131bA. Lucotte,54 A. Ludwig,43D. Ludwig,41I. Ludwig,47J. Ludwig,47F. Luehring,60G. Luijckx,104D. Lumb,47L. Luminari,131a
E. Lund,116B. Lund-Jensen,146B. Lundberg,78J. Lundberg,145a,145bJ. Lundquist,35M. Lungwitz,80G. Lutz,98 D. Lynn,24J. Lys,14E. Lytken,78H. Ma,24L. L. Ma,171J. A. Macana Goia,92G. Maccarrone,46A. Macchiolo,98 B. Macˇek,73J. Machado Miguens,123aR. Mackeprang,35R. J. Madaras,14W. F. Mader,43R. Maenner,57cT. Maeno,24
P. Ma¨ttig,173S. Ma¨ttig,41L. Magnoni,29E. Magradze,53Y. Mahalalel,152K. Mahboubi,47G. Mahout,17 C. Maiani,131a,131bC. Maidantchik,23aA. Maio,123a,cS. Majewski,24Y. Makida,65N. Makovec,114P. Mal,135 B. Malaescu,29Pa. Malecki,38P. Malecki,38V. P. Maleev,120F. Malek,54U. Mallik,62D. Malon,5C. Malone,142
S. Maltezos,9V. Malyshev,106S. Malyukov,29R. Mameghani,97J. Mamuzic,12bA. Manabe,65L. Mandelli,88a I. Mandic´,73R. Mandrysch,15J. Maneira,123aP. S. Mangeard,87L. Manhaes de Andrade Filho,23aI. D. Manjavidze,64 A. Mann,53P. M. Manning,136A. Manousakis-Katsikakis,8B. Mansoulie,135A. Manz,98A. Mapelli,29L. Mapelli,29
L. March,79J. F. Marchand,28F. Marchese,132a,132bG. Marchiori,77M. Marcisovsky,124C. P. Marino,168 F. Marroquim,23aR. Marshall,81Z. Marshall,29F. K. Martens,157S. Marti-Garcia,166A. J. Martin,174B. Martin,29
B. Martin,87F. F. Martin,119J. P. Martin,92Ph. Martin,54T. A. Martin,17V. J. Martin,45B. Martin dit Latour,48 S. Martin-Haugh,148M. Martinez,11V. Martinez Outschoorn,56A. C. Martyniuk,168M. Marx,81F. Marzano,131a
A. Marzin,110L. Masetti,80T. Mashimo,154R. Mashinistov,93J. Masik,81A. L. Maslennikov,106I. Massa,19a,19b G. Massaro,104N. Massol,4P. Mastrandrea,131a,131bA. Mastroberardino,36a,36bT. Masubuchi,154P. Matricon,114
H. Matsumoto,154H. Matsunaga,154T. Matsushita,66C. Mattravers,117,dJ. M. Maugain,29J. Maurer,82 S. J. Maxfield,72D. A. Maximov,106,gE. N. May,5A. Mayne,138R. Mazini,150M. Mazur,20M. Mazzanti,88a S. P. Mc Kee,86A. McCarn,164R. L. McCarthy,147T. G. McCarthy,28N. A. McCubbin,128K. W. McFarlane,55
J. A. Mcfayden,138H. McGlone,52G. Mchedlidze,50bR. A. McLaren,29T. Mclaughlan,17S. J. McMahon,128 R. A. McPherson,168,jA. Meade,83J. Mechnich,104M. Mechtel,173M. Medinnis,41R. Meera-Lebbai,110 T. Meguro,115R. Mehdiyev,92S. Mehlhase,35A. Mehta,72K. Meier,57aB. Meirose,78C. Melachrinos,30 B. R. Mellado Garcia,171L. Mendoza Navas,161Z. Meng,150,sA. Mengarelli,19a,19bS. Menke,98C. Menot,29
E. Meoni,11K. M. Mercurio,56P. Mermod,48L. Merola,101a,101bC. Meroni,88aF. S. Merritt,30H. Merritt,108 A. Messina,29J. Metcalfe,102A. S. Mete,63C. Meyer,80C. Meyer,30J-P. Meyer,135J. Meyer,172J. Meyer,53 T. C. Meyer,29W. T. Meyer,63J. Miao,32dS. Michal,29L. Micu,25aR. P. Middleton,128S. Migas,72L. Mijovic´,41
G. Mikenberg,170M. Mikestikova,124M. Mikuzˇ,73D. W. Miller,30R. J. Miller,87W. J. Mills,167C. Mills,56 A. Milov,170D. A. Milstead,145a,145bD. Milstein,170A. A. Minaenko,127M. Min˜ano Moya,166I. A. Minashvili,64
A. I. Mincer,107B. Mindur,37M. Mineev,64Y. Ming,171L. M. Mir,11G. Mirabelli,131aL. Miralles Verge,11 A. Misiejuk,75J. Mitrevski,136G. Y. Mitrofanov,127V. A. Mitsou,166S. Mitsui,65P. S. Miyagawa,138K. Miyazaki,66
J. U. Mjo¨rnmark,78T. Moa,145a,145bP. Mockett,137S. Moed,56V. Moeller,27K. Mo¨nig,41N. Mo¨ser,20 S. Mohapatra,147W. Mohr,47S. Mohrdieck-Mo¨ck,98A. M. Moisseev,127,aR. Moles-Valls,166J. Molina-Perez,29 J. Monk,76E. Monnier,82S. Montesano,88a,88bF. Monticelli,69S. Monzani,19a,19bR. W. Moore,2G. F. Moorhead,85 C. Mora Herrera,48A. Moraes,52N. Morange,135J. Morel,53G. Morello,36a,36bD. Moreno,80M. Moreno Lla´cer,166
P. Morettini,49aM. Morgenstern,43M. Morii,56J. Morin,74A. K. Morley,29G. Mornacchi,29S. V. Morozov,95 J. D. Morris,74L. Morvaj,100H. G. Moser,98M. Mosidze,50bJ. Moss,108R. Mount,142E. Mountricha,9,w S. V. Mouraviev,93E. J. W. Moyse,83M. Mudrinic,12bF. Mueller,57aJ. Mueller,122K. Mueller,20T. A. Mu¨ller,97 T. Mueller,80D. Muenstermann,29A. Muir,167Y. Munwes,152W. J. Murray,128I. Mussche,104E. Musto,101a,101b A. G. Myagkov,127M. Myska,124J. Nadal,11K. Nagai,159K. Nagano,65A. Nagarkar,108Y. Nagasaka,59M. Nagel,98
A. M. Nairz,29Y. Nakahama,29K. Nakamura,154T. Nakamura,154I. Nakano,109G. Nanava,20A. Napier,160 R. Narayan,57bM. Nash,76,dN. R. Nation,21T. Nattermann,20T. Naumann,41G. Navarro,161H. A. Neal,86E. Nebot,79
P. Yu. Nechaeva,93T. J. Neep,81A. Negri,118a,118bG. Negri,29S. Nektarijevic,48A. Nelson,162S. Nelson,142 T. K. Nelson,142S. Nemecek,124P. Nemethy,107A. A. Nepomuceno,23aM. Nessi,29,xM. S. Neubauer,164 A. Neusiedl,80R. M. Neves,107P. Nevski,24P. R. Newman,17V. Nguyen Thi Hong,135R. B. Nickerson,117 R. Nicolaidou,135L. Nicolas,138B. Nicquevert,29F. Niedercorn,114J. Nielsen,136T. Niinikoski,29N. Nikiforou,34 A. Nikiforov,15V. Nikolaenko,127K. Nikolaev,64I. Nikolic-Audit,77K. Nikolics,48K. Nikolopoulos,24H. Nilsen,47
P. Nilsson,7Y. Ninomiya,154A. Nisati,131aT. Nishiyama,66R. Nisius,98L. Nodulman,5M. Nomachi,115 I. Nomidis,153M. Nordberg,29B. Nordkvist,145a,145bP. R. Norton,128J. Novakova,125M. Nozaki,65L. Nozka,112
I. M. Nugent,158aA.-E. Nuncio-Quiroz,20G. Nunes Hanninger,85T. Nunnemann,97E. Nurse,76B. J. O’Brien,45 S. W. O’Neale,17,aD. C. O’Neil,141V. O’Shea,52L. B. Oakes,97F. G. Oakham,28,eH. Oberlack,98J. Ocariz,77 A. Ochi,66S. Oda,154S. Odaka,65J. Odier,82H. Ogren,60A. Oh,81S. H. Oh,44C. C. Ohm,145a,145bT. Ohshima,100 H. Ohshita,139T. Ohsugi,58S. Okada,66H. Okawa,162Y. Okumura,100T. Okuyama,154A. Olariu,25aM. Olcese,49a
A. G. Olchevski,64S. A. Olivares Pino,31aM. Oliveira,123a,hD. Oliveira Damazio,24E. Oliver Garcia,166 D. Olivito,119A. Olszewski,38J. Olszowska,38C. Omachi,66A. Onofre,123a,yP. U. E. Onyisi,30C. J. Oram,158a M. J. Oreglia,30Y. Oren,152D. Orestano,133a,133bI. Orlov,106C. Oropeza Barrera,52R. S. Orr,157B. Osculati,49a,49b
R. Ospanov,119C. Osuna,11G. Otero y Garzon,26J. P. Ottersbach,104M. Ouchrif,134dE. A. Ouellette,168 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,9B. Panes,31aN. Panikashvili,86S. Panitkin,24D. Pantea,25aM. Panuskova,124V. Paolone,122
A. Papadelis,145aTh. D. Papadopoulou,9A. Paramonov,5D. Paredes Hernandez,33W. Park,24,zM. A. Parker,27 F. Parodi,49a,49bJ. A. Parsons,34U. Parzefall,47E. Pasqualucci,131aS. Passaggio,49aA. Passeri,133aF. Pastore,133a,133b Fr. Pastore,75G. Pa´sztor,48,aaS. Pataraia,173N. Patel,149J. R. Pater,81S. Patricelli,101a,101bT. Pauly,29M. Pecsy,143a M. I. Pedraza Morales,171S. V. Peleganchuk,106H. Peng,32bR. Pengo,29B. Penning,30A. Penson,34J. Penwell,60
M. Perantoni,23aK. Perez,34,bbT. Perez Cavalcanti,41E. Perez Codina,11M. T. Pe´rez Garcı´a-Estan˜,166 V. Perez Reale,34L. Perini,88a,88bH. Pernegger,29R. Perrino,71aP. Perrodo,4S. Persembe,3aA. Perus,114 V. D. Peshekhonov,64K. Peters,29B. A. Petersen,29J. Petersen,29T. C. Petersen,35E. Petit,4A. Petridis,153
C. Petridou,153E. Petrolo,131aF. Petrucci,133a,133bD. Petschull,41M. Petteni,141R. Pezoa,31bA. Phan,85 P. W. Phillips,128G. Piacquadio,29A. Picazio,48E. Piccaro,74M. Piccinini,19a,19bS. M. Piec,41R. Piegaia,26 D. T. Pignotti,108J. E. Pilcher,30A. D. Pilkington,81J. Pina,123a,cM. Pinamonti,163a,163cA. Pinder,117J. L. Pinfold,2
J. Ping,32cB. Pinto,123aO. Pirotte,29C. Pizio,88a,88bM. Plamondon,168M.-A. Pleier,24A. V. Pleskach,127 A. Poblaguev,24S. Poddar,57aF. Podlyski,33L. Poggioli,114T. Poghosyan,20M. Pohl,48F. Polci,54G. Polesello,118a A. Policicchio,36a,36bA. Polini,19aJ. Poll,74V. Polychronakos,24D. M. Pomarede,135D. Pomeroy,22K. Pomme`s,29
L. Pontecorvo,131aB. G. Pope,87G. A. Popeneciu,25aD. S. Popovic,12aA. Poppleton,29X. Portell Bueso,29 C. Posch,21G. E. Pospelov,98S. Pospisil,126I. N. Potrap,98C. J. Potter,148C. T. Potter,113G. Poulard,29J. Poveda,171
V. Pozdnyakov,64R. Prabhu,76P. Pralavorio,82A. Pranko,14S. Prasad,29R. Pravahan,7S. Prell,63K. Pretzl,16 L. Pribyl,29D. Price,60J. Price,72L. E. Price,5M. J. Price,29D. Prieur,122M. Primavera,71aK. Prokofiev,107 F. Prokoshin,31bS. Protopopescu,24J. Proudfoot,5X. Prudent,43M. Przybycien,37H. Przysiezniak,4S. Psoroulas,20
E. Ptacek,113E. Pueschel,83J. Purdham,86M. Purohit,24,zP. Puzo,114Y. Pylypchenko,62J. Qian,86Z. Qian,82 Z. Qin,41A. Quadt,53D. R. Quarrie,14W. B. Quayle,171F. Quinonez,31aM. Raas,103V. Radescu,57bB. Radics,20
P. Radloff,113T. Rador,18aF. Ragusa,88a,88bG. Rahal,176A. M. Rahimi,108D. Rahm,24S. Rajagopalan,24 M. Rammensee,47M. Rammes,140A. S. Randle-Conde,39K. Randrianarivony,28P. N. Ratoff,70F. Rauscher,97 T. C. Rave,47M. Raymond,29A. L. Read,116D. M. Rebuzzi,118a,118bA. Redelbach,172G. Redlinger,24R. Reece,119
K. Reeves,40A. Reichold,104E. Reinherz-Aronis,152A. Reinsch,113I. Reisinger,42C. Rembser,29Z. L. Ren,150 A. Renaud,114M. Rescigno,131aS. Resconi,88aB. Resende,135P. Reznicek,97R. Rezvani,157A. Richards,76 R. Richter,98E. Richter-Was,4,jjM. Ridel,77M. Rijpstra,104M. Rijssenbeek,147A. Rimoldi,118a,118bL. Rinaldi,19a
R. R. Rios,39I. Riu,11G. Rivoltella,88a,88bF. Rizatdinova,111E. Rizvi,74S. H. Robertson,84,j A. Robichaud-Veronneau,117D. Robinson,27J. E. M. Robinson,76A. Robson,52J. G. Rocha de Lima,105 C. Roda,121a,121bD. Roda Dos Santos,29D. Rodriguez,161A. Roe,53S. Roe,29O. Røhne,116V. Rojo,1S. Rolli,160
A. Romaniouk,95M. Romano,19a,19bV. M. Romanov,64G. Romeo,26E. Romero Adam,166L. Roos,77E. Ros,166 S. Rosati,131aK. Rosbach,48A. Rose,148M. Rose,75G. A. Rosenbaum,157E. I. Rosenberg,63P. L. Rosendahl,13 O. Rosenthal,140L. Rosselet,48V. Rossetti,11E. Rossi,131a,131bL. P. Rossi,49aM. Rotaru,25aI. Roth,170J. Rothberg,137
D. Rousseau,114C. R. Royon,135A. Rozanov,82Y. Rozen,151X. Ruan,32a,ddI. Rubinskiy,41B. Ruckert,97 N. Ruckstuhl,104V. I. Rud,96C. Rudolph,43G. Rudolph,61F. Ru¨hr,6F. Ruggieri,133a,133bA. Ruiz-Martinez,63
V. Rumiantsev,90,aL. Rumyantsev,64K. Runge,47Z. Rurikova,47N. A. Rusakovich,64J. P. Rutherfoord,6 C. Ruwiedel,14P. Ruzicka,124Y. F. Ryabov,120V. Ryadovikov,127P. Ryan,87M. Rybar,125G. Rybkin,114
N. C. Ryder,117S. Rzaeva,10A. F. Saavedra,149I. Sadeh,152H. F-W. Sadrozinski,136R. Sadykov,64
F. Safai Tehrani,131aH. Sakamoto,154G. Salamanna,74A. Salamon,132aM. Saleem,110D. Salihagic,98A. Salnikov,142 J. Salt,166B. M. Salvachua Ferrando,5D. Salvatore,36a,36bF. Salvatore,148A. Salvucci,103A. Salzburger,29 D. Sampsonidis,153B. H. Samset,116A. Sanchez,101a,101bV. Sanchez Martinez,166H. Sandaker,13H. G. Sander,80 M. P. Sanders,97M. Sandhoff,173T. Sandoval,27C. Sandoval,161R. Sandstroem,98S. Sandvoss,173D. P. C. Sankey,128
A. Sansoni,46C. Santamarina Rios,84C. Santoni,33R. Santonico,132a,132bH. Santos,123aA. Sapronov,64 J. G. Saraiva,123aT. Sarangi,171E. Sarkisyan-Grinbaum,7F. Sarri,121a,121bG. Sartisohn,173O. Sasaki,65N. Sasao,67
I. Satsounkevitch,89G. Sauvage,4E. Sauvan,4J. B. Sauvan,114P. Savard,157,eV. Savinov,122D. O. Savu,29 L. Sawyer,24,lD. H. Saxon,52L. P. Says,33C. Sbarra,19aA. Sbrizzi,19a,19bO. Scallon,92D. A. Scannicchio,162 M. Scarcella,149J. Schaarschmidt,114P. Schacht,98U. Scha¨fer,80S. Schaepe,20S. Schaetzel,57bA. C. Schaffer,114
D. Schaile,97R. D. Schamberger,147A. G. Schamov,106V. Scharf,57aV. A. Schegelsky,120D. Scheirich,86 M. Schernau,162M. I. Scherzer,34C. Schiavi,49a,49bJ. Schieck,97M. Schioppa,36a,36bS. Schlenker,29J. L. Schlereth,5
E. Schmidt,47K. Schmieden,20C. Schmitt,80S. Schmitt,57bM. Schmitz,20A. Scho¨ning,57bM. Schott,29 D. Schouten,158aJ. Schovancova,124M. Schram,84C. Schroeder,80N. Schroer,57cG. Schuler,29M. J. Schultens,20
J. Schultes,173H.-C. Schultz-Coulon,57aH. Schulz,15J. W. Schumacher,20M. Schumacher,47B. A. Schumm,136 Ph. Schune,135C. Schwanenberger,81A. Schwartzman,142Ph. Schwemling,77R. Schwienhorst,87R. Schwierz,43 J. Schwindling,135T. Schwindt,20M. Schwoerer,4W. G. Scott,128J. Searcy,113G. Sedov,41E. Sedykh,120E. Segura,11 S. C. Seidel,102A. Seiden,136F. Seifert,43J. M. Seixas,23aG. Sekhniaidze,101aK. 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,64A. Shmeleva,93 M. J. Shochet,30D. Short,117S. Shrestha,63E. 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,76M. Simonyan,35P. Sinervo,157N. B. Sinev,113V. Sipica,140
G. Siragusa,172A. Sircar,24A. N. Sisakyan,64S. Yu. Sivoklokov,96J. Sjo¨lin,145a,145bT. B. Sjursen,13L. A. Skinnari,14 H. P. Skottowe,56K. Skovpen,106P. Skubic,110N. Skvorodnev,22M. Slater,17T. Slavicek,126K. Sliwa,160J. Sloper,29 V. Smakhtin,170B. H. Smart,45S. Yu. Smirnov,95Y. Smirnov,95L. N. Smirnova,96O. Smirnova,78B. C. Smith,56
D. Smith,142K. M. Smith,52M. Smizanska,70K. Smolek,126A. A. Snesarev,93S. W. Snow,81J. Snow,110 J. Snuverink,104S. Snyder,24M. Soares,123aR. Sobie,168,jJ. Sodomka,126A. Soffer,152C. A. Solans,166M. Solar,126 J. Solc,126E. Soldatov,95U. Soldevila,166E. Solfaroli Camillocci,131a,131bA. A. Solodkov,127O. V. Solovyanov,127
N. Soni,2V. Sopko,126B. Sopko,126M. Sosebee,7R. Soualah,163a,163cA. Soukharev,106S. Spagnolo,71a,71b F. Spano`,75R. Spighi,19aG. Spigo,29F. Spila,131a,131bR. Spiwoks,29M. Spousta,125T. Spreitzer,157B. Spurlock,7
R. D. St. Denis,52J. Stahlman,119R. Stamen,57aE. Stanecka,38R. W. Stanek,5C. Stanescu,133aS. Stapnes,116 E. A. Starchenko,127J. Stark,54P. Staroba,124P. Starovoitov,90A. Staude,97P. Stavina,143aG. Steele,52P. Steinbach,43
P. Steinberg,24I. Stekl,126B. Stelzer,141H. J. Stelzer,87O. Stelzer-Chilton,158aH. Stenzel,51S. Stern,98 K. Stevenson,74G. A. Stewart,29J. A. Stillings,20M. C. Stockton,84K. Stoerig,47G. Stoicea,25aS. Stonjek,98
P. Strachota,125A. R. Stradling,7A. Straessner,43J. Strandberg,146S. Strandberg,145a,145bA. Strandlie,116 M. Strang,108E. Strauss,142M. Strauss,110P. Strizenec,143bR. Stro¨hmer,172D. M. Strom,113J. A. Strong,75,a R. Stroynowski,39J. Strube,128B. Stugu,13I. Stumer,24,aJ. Stupak,147P. Sturm,173N. A. Styles,41D. A. Soh,150,u
D. Su,142HS. Subramania,2A. Succurro,11Y. Sugaya,115T. Sugimoto,100C. Suhr,105K. Suita,66M. Suk,125 V. V. Sulin,93S. Sultansoy,3dT. Sumida,67X. Sun,54J. E. Sundermann,47K. Suruliz,138S. Sushkov,11 G. Susinno,36a,36bM. R. Sutton,148Y. Suzuki,65Y. Suzuki,66M. Svatos,124Yu. M. Sviridov,127S. Swedish,167 I. Sykora,143aT. Sykora,125B. Szeless,29J. Sa´nchez,166D. Ta,104K. Tackmann,41A. Taffard,162R. Tafirout,158a N. Taiblum,152Y. Takahashi,100H. Takai,24R. Takashima,68H. Takeda,66T. Takeshita,139Y. Takubo,65M. Talby,82
A. Talyshev,106,gM. C. Tamsett,24J. Tanaka,154R. Tanaka,114S. Tanaka,130S. Tanaka,65Y. Tanaka,99 A. J. Tanasijczuk,141K. Tani,66N. Tannoury,82G. P. Tappern,29S. Tapprogge,80D. Tardif,157S. Tarem,151 F. Tarrade,28G. F. Tartarelli,88aP. Tas,125M. Tasevsky,124E. Tassi,36a,36bM. Tatarkhanov,14Y. Tayalati,134d
C. Taylor,76F. E. Taylor,91G. N. Taylor,85W. Taylor,158bM. Teinturier,114M. Teixeira Dias Castanheira,74 P. Teixeira-Dias,75K. K. Temming,47H. Ten Kate,29P. K. Teng,150S. Terada,65K. Terashi,154J. Terron,79M. Testa,46 R. J. Teuscher,157,jJ. Thadome,173J. Therhaag,20T. Theveneaux-Pelzer,77M. Thioye,174S. Thoma,47J. P. Thomas,17 E. N. Thompson,34P. D. Thompson,17P. D. Thompson,157A. S. Thompson,52L. A. Thomsen,35E. Thomson,119
M. Thomson,27R. P. Thun,86F. Tian,34M. J. Tibbetts,14T. Tic,124V. O. Tikhomirov,93Y. A. Tikhonov,106,g S. Timoshenko,95P. Tipton,174F. J. Tique Aires Viegas,29S. Tisserant,82B. Toczek,37T. Todorov,4 S. Todorova-Nova,160B. Toggerson,162J. Tojo,65S. Toka´r,143aK. Tokunaga,66K. Tokushuku,65K. Tollefson,87 M. Tomoto,100L. Tompkins,30K. Toms,102G. Tong,32aA. Tonoyan,13C. Topfel,16N. D. Topilin,64I. Torchiani,29
E. Torrence,113H. Torres,77E. Torro´ Pastor,166J. Toth,82,aaF. Touchard,82D. R. Tovey,138T. Trefzger,172 L. Tremblet,29A. Tricoli,29I. M. Trigger,158aS. Trincaz-Duvoid,77T. N. Trinh,77M. F. Tripiana,69W. Trischuk,157
A. Trivedi,24,zB. Trocme´,54C. Troncon,88aM. Trottier-McDonald,141M. Trzebinski,38A. Trzupek,38 C. Tsarouchas,29J. C-L. Tseng,117M. Tsiakiris,104P. V. Tsiareshka,89D. Tsionou,4,ccG. Tsipolitis,9V. Tsiskaridze,47
E. G. Tskhadadze,50aI. I. Tsukerman,94V. Tsulaia,14J.-W. Tsung,20S. Tsuno,65D. Tsybychev,147A. Tua,138 A. Tudorache,25aV. Tudorache,25aJ. M. Tuggle,30M. Turala,38D. Turecek,126I. Turk Cakir,3eE. Turlay,104
R. Turra,88a,88bP. M. Tuts,34A. Tykhonov,73M. Tylmad,145a,145bM. Tyndel,128G. Tzanakos,8K. Uchida,20 I. Ueda,154R. Ueno,28M. Ugland,13M. Uhlenbrock,20M. Uhrmacher,53F. Ukegawa,159G. Unal,29 D. G. Underwood,5A. Undrus,24G. Unel,162Y. Unno,65D. 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,131aE. W. Varnes,6D. 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,eeO. 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,64M. Virchaux,135,aJ. Virzi,14O. Vitells,170M. Viti,41
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,100J. Walbersloh,42S. Walch,86J. Walder,70R. Walker,97
W. Walkowiak,140R. Wall,174P. Waller,72C. Wang,44H. Wang,171H. Wang,32b,ffJ. Wang,150J. Wang,54 J. C. Wang,137R. Wang,102S. M. Wang,150A. Warburton,84C. P. Ward,27M. Warsinsky,47P. M. Watkins,17
A. T. Watson,17I. J. Watson,149M. F. Watson,17G. Watts,137S. Watts,81A. T. Waugh,149B. M. Waugh,76 M. Weber,128M. S. Weber,16P. Weber,53A. R. Weidberg,117P. Weigell,98J. Weingarten,53C. Weiser,47 H. Wellenstein,22P. S. Wells,29T. Wenaus,24D. Wendland,15S. Wendler,122Z. Weng,150,uT. Wengler,29S. Wenig,29
N. Wermes,20M. Werner,47P. Werner,29M. Werth,162M. Wessels,57aC. Weydert,54K. Whalen,28 S. J. Wheeler-Ellis,162S. P. Whitaker,21A. White,7M. J. White,85S. R. Whitehead,117D. Whiteson,162 D. Whittington,60F. Wicek,114D. Wicke,173F. J. Wickens,128W. Wiedenmann,171M. Wielers,128P. Wienemann,20
C. Wiglesworth,74L. A. M. Wiik-Fuchs,47P. A. Wijeratne,76A. Wildauer,166M. A. Wildt,41,qI. Wilhelm,125 H. G. Wilkens,29J. Z. Will,97E. Williams,34H. H. Williams,119W. Willis,34S. Willocq,83J. A. Wilson,17
M. G. Wilson,142A. Wilson,86I. Wingerter-Seez,4S. Winkelmann,47F. Winklmeier,29M. Wittgen,142 M. W. Wolter,38H. Wolters,123a,hW. C. Wong,40G. Wooden,86B. K. Wosiek,38J. Wotschack,29M. J. Woudstra,83 K. W. Wozniak,38K. Wraight,52C. Wright,52M. Wright,52B. Wrona,72S. L. Wu,171X. Wu,48Y. Wu,32b,ggE. Wulf,34
R. Wunstorf,42B. M. Wynne,45S. Xella,35M. Xiao,135S. Xie,47Y. Xie,32aC. Xu,32b,wD. Xu,138G. Xu,32a B. Yabsley,149S. Yacoob,144bM. Yamada,65H. Yamaguchi,154A. Yamamoto,65K. Yamamoto,63S. Yamamoto,154 T. Yamamura,154T. Yamanaka,154J. Yamaoka,44T. Yamazaki,154Y. Yamazaki,66Z. Yan,21H. Yang,86U. K. Yang,81 Y. Yang,60Y. Yang,32aZ. Yang,145a,145bS. Yanush,90Y. Yao,14Y. Yasu,65G. V. Ybeles Smit,129J. Ye,39S. Ye,24 M. Yilmaz,3cR. Yoosoofmiya,122K. Yorita,169R. Yoshida,5C. Young,142S. Youssef,21D. Yu,24J. Yu,7J. Yu,111
L. Yuan,32a,hhA. Yurkewicz,105B. Zabinski,38V. G. Zaets,127R. Zaidan,62A. M. Zaitsev,127Z. Zajacova,29 L. Zanello,131a,131bA. Zaytsev,106C. Zeitnitz,173M. Zeller,174M. Zeman,124A. Zemla,38C. Zendler,20O. Zenin,127
T. Zˇ enisˇ,143aZ. Zinonos,121a,121bS. Zenz,14D. Zerwas,114G. Zevi della Porta,56Z. Zhan,32dD. Zhang,32b,ff H. Zhang,87J. Zhang,5X. Zhang,32dZ. Zhang,114L. Zhao,107T. Zhao,137Z. Zhao,32bA. Zhemchugov,64S. Zheng,32a
J. Zhong,117B. Zhou,86N. Zhou,162Y. Zhou,150C. G. Zhu,32dH. Zhu,41J. Zhu,86Y. Zhu,32bX. Zhuang,97 V. Zhuravlov,98D. Zieminska,60R. Zimmermann,20S. Zimmermann,20S. Zimmermann,47M. Ziolkowski,140 R. Zitoun,4L. Zˇ ivkovic´,34V. V. Zmouchko,127,aG. Zobernig,171A. Zoccoli,19a,19bY. Zolnierowski,4A. Zsenei,29
M. zur Nedden,15V. Zutshi,105and L. Zwalinski29
(ATLAS Collaboration) 1
University 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
9Physics 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
12a
Institute 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
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
19bDipartimento di Fisica, Universita` di Bologna, Bologna, Italy 20Physikalisches Institut, University of Bonn, Bonn, Germany 21
Department 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 31b
Departamento 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
33Laboratoire 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 40Physics 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
44Department of Physics, Duke University, Durham North Carolina, USA
45SUPA—School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom 46INFN Laboratori Nazionali di Frascati, Frascati, Italy
47Fakulta¨t fu¨r Mathematik und Physik, Albert-Ludwigs-Universita¨t, Freiburg i.Br., Germany 48Section de Physique, Universite´ de Gene`ve, Geneva, Switzerland
49a
INFN Sezione di Genova, Italy
49bDipartimento di Fisica, Universita` di Genova, Genova, Italy
50aE.Andronikashvili Institute of Physics, Tbilisi State University, Tbilisi, Georgia 50bHigh Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia 51II Physikalisches Institut, Justus-Liebig-Universita¨t Giessen, Giessen, Germany 52SUPA—School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
53II Physikalisches Institut, Georg-August-Universita¨t, Go¨ttingen, Germany
54Laboratoire de Physique Subatomique et de Cosmologie, Universite´ Joseph Fourier and CNRS/IN2P3 and Institut National
Polytechnique de Grenoble, Grenoble, France
55
Department of Physics, Hampton University, Hampton Virginia, USA
56Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge Massachusetts, USA 57aKirchhoff-Institut fu¨r Physik, Ruprecht-Karls-Universita¨t Heidelberg, Heidelberg, Germany
57bPhysikalisches Institut, Ruprecht-Karls-Universita¨t Heidelberg, Heidelberg, Germany 57cZITI Institut fu¨r technische Informatik, Ruprecht-Karls-Universita¨t Heidelberg, Mannheim, Germany
