Measurement of the ratio B(B-s(0) -> J/psi f(0)(980))/B(B-s(0) -> J/psi phi(1020)) in pp collisions at root s=7 TeV

Contents lists available atScienceDirect

Physics

Letters

B

www.elsevier.com/locate/physletb

Measurement

of

the

ratio

B

(

B

→

J

/ψ

f

(

980

))/

B

(

B

→

J

/ψφ (

1020

))

in

pp

collisions

at

√

s

=

7 TeV

Receivedinrevisedform6January2016 Accepted23February2016

Availableonline27February2016 Editor:M.Doser

AmeasurementoftheratioofthebranchingfractionsoftheB0

smesontoJ/ψf0(980)andtoJ/ψφ (1020) is presented.TheJ/ψ,f0(980),and φ(1020) areobservedthroughtheirdecaystoμ+μ−,π+π−,and K+K−,respectively. The f0 and the φ are identified byrequiring |Mπ+π−−974 MeV|<50 MeV and |MK+K−−1020 MeV|<10 MeV. Theanalysis is basedonadata sampleof ppcollisions ata centre-of-mass energyof7 TeV,collectedbytheCMS experimentattheLHC, correspondingtoanintegrated luminosityof5.3 fb−1_{.Themeasuredratiois} B(B0

s→J/ψf0)B(f0→π+π−)

B(B0

s→J/ψφ)B(φ→K+K−) =0.140±0.008(stat)±0.023(syst), wherethefirstuncertaintyisstatisticalandthesecondissystematic.

©2016CERNforthebenefitoftheCMSCollaboration.PublishedbyElsevierB.V.Thisisanopenaccess articleundertheCCBYlicense(http://creativecommons.org/licenses/by/4.0/).FundedbySCOAP3_.

1. Introduction

SincetheobservationofthedecayB0

s→J/ψπ+π−withJ/ψ→

μ+μ−, andthe π+π− massspectrum indicating a large f0(980)

component[1],thischannelhasbeenregardedwithgreatinterest inheavy-flavor physics.Moredetailedstudiesofthe π+π−mass spectrumhaveshownthe π+π− systemto bealmostentirelyCP odd[2,3]. Thisopensup thepossibilityofdirectly measuringthe lifetimeoftheCP-oddpartoftheB0s meson[4,5].Inaddition,the

B0

s→J/ψπ+π− decayhasbeenusedforthemeasurementofthe

CP-violating phase φs [6,7], making an important contributionto the world-average value of φs [8–13]. The phase φs is predicted tobe smallinthe standardmodel[14],making itsdetermination interesting becauseof thelarge enhancements that can be intro-ducedbynewphysics[15,16].Inwhatfollows,wewillrefertothe f0(980)asf0 andtheφ (1020)asφ.

ThisLetterpresentsthemeasurementoftheratio Rf0/φ ofthe

branching fractions B(B0_s →J/ψf0)B(f0→π+π−) and B(B0s →

J/ψφ)B(φ →K+K−), where in both cases the J/ψ is detected throughitsdecayto μ+μ−.Thef0andtheφareidentifiedby

re-quiring |_Mπ+_π−−974 MeV| <50 MeV and |MK+K−−1020 MeV| <

10 MeV.TheappearanceofB0_s→J/ψf0 decayswasfirstdiscussed

in[17]withatheoreticalestimatefor Rf0/φ ofapproximately0.2,

whichisconsistentwithresultsfromseveralexperiments[2,4,18, 19]. Detailed studies of the π+π− mass spectrum of the B0

s →

J/ψπ+π− decayin0.3<_Mπ+π−<2.5 GeV[2,3]revealthisfinal

 _{E-mailaddress:cms-publication-committee-chair@cern.ch.}

statetohavecontributionsfromseveralresonancesin_Mπ+_π−,and thef0 componenttorangefrom65.0%to94.5%.However,

accord-ingtothesameresults,thecontaminationsfromotherresonances in |_Mπ+_π−−974 MeV| <50 MeV areseveralordersofmagnitude lower thanthef0 component,includingthenon-resonantS-wave.

Based on this, the measurement of Rf0/φ is performedassuming

thattheselectedregionof_Mπ+_π− isdominatedbyB0

s→J/ψf0

de-caysandneglectingotherresonances.Systematicuncertainties are assignedto themeasurementowing totheseassumptions,taking into account the uncertainty in the f0 componentandthe

inter-ferences withother resonancesin the selected masswindow for Mπ+_π−.

Experimentally,theratio Rf0/φisgivenby

Rf0/φ= B(B0_s →J/ψf0)B(f0→π+π−) B(B0s→J/ψφ)B(φ→K+K−) =N f0 obs Nφ_obs φ/f0 reco, (1) whereNf0 obsandN φ

obsaretheobservedyieldsofB0s→J/ψ(μ+μ−)f0

withf0→π+π−andB0s→J/ψ(μ+μ−)φwithφ→K+K−decays,

respectively, and φ/f0

reco istheratioofthedetectionefficienciesfor

theB0_s decaymodewithaφtothedecaymodewithaf0.

Uncer-taintiesinthebquarkproductioncrosssectioncancelintheratio, asdothosefromtheJ/ψ→μ+μ−branchingfractionandthe in-tegrated luminosity.Giventhesimilar topologies ofthe twofinal states, systematic uncertainties related to the tracking efficiency andthemuonidentificationalsocancelintheratio.

http://dx.doi.org/10.1016/j.physletb.2016.02.047

0370-2693/©2016CERNforthebenefitoftheCMSCollaboration.PublishedbyElsevierB.V.ThisisanopenaccessarticleundertheCCBYlicense (http://creativecommons.org/licenses/by/4.0/).FundedbySCOAP3_.

2. TheCMSdetector

ThecentralfeatureoftheCMSapparatusisasuperconducting solenoid of 6 m internal diameter. Within the 3.8 T field vol-umeare asilicon pixelandstrip tracker, alead tungstatecrystal electromagnetic calorimeter, and a brass and scintillator hadron calorimeter,each composed ofa barrelandtwo endcapsections. Muonsaremeasuredinthepseudorapidityrange|η|<2.4 in gas-ionization detectors embedded in the steelflux-return yoke out-sidethe solenoid,which aremadeusingthree technologies:drift tubes, cathode strip chambers, and resistive-plate chambers. Ex-tensive forward calorimetry complements the coverage provided bythebarrelandendcapdetectors.Themainsubdetectorsusedin thisanalysisarethesilicontrackerandthemuonsystems.

Thesilicontrackermeasureschargedparticleswithinthe pseu-dorapidity range|η| <2.5 and consistsof 1440silicon pixel and 15 148silicon strip detectormodules. Matching muons to tracks measuredinthesilicontrackerresultsinarelativetransverse mo-mentumresolutionformuonswith20<pT<100 GeV of1.3–2.0%

inthe barrel and better than 6% in the endcaps. The pT

resolu-tion in the barrel is better than 10% for muons with pT up to

1 TeV[20].

ThefirstleveloftheCMStriggersystem, composedofcustom hardware processors,uses informationfrom thecalorimeters and muon detectors to select the most interesting events in a fixed timeintervaloflessthan4 μs.Thehigh-leveltrigger(HLT) proces-sorfarmfurtherdecreasestheeventratetolessthan1 kHz,before datastorage.

AmoredetaileddescriptionoftheCMSdetector,togetherwith adefinitionofthecoordinatesystemusedandtherelevant kine-maticvariables,canbefoundinRef.[21].

3. Eventselection

The data sample used for this measurement was collected in 2011by the CMSexperimentat the CERNLHC in proton–proton collisionsatacentre-of-massenergyof7 TeVandcorrespondsto anintegratedluminosityof5.3 fb−1_.

The search for B0_s →J/ψf0 decays is performed in events

withtwo muon candidatesselectedby thedimuon triggeratthe HLT, requiring the muon pair to originate froma displaced ver-tex.The dimuon candidates are further required to complywith Lxy/σxy>3,where Lxy isthemagnitudeofthevector Lxy,which liesinaplanetransversetothebeamaxisandpointsfromthe in-teraction point to the dimuon vertex, and σxy is its uncertainty; cosαJ/ψ >0.9, where αJ/ψ is the angle between the direction

of the dimuon transverse momentum and Lxy; pT>4 GeV and

|η| <2.2 for each muon candidate; pT>7 GeV for the dimuon;

thedistanceofclosestapproach ofeach muontrackwithrespect totheothermuontrack<0.5 cm.

ReconstructionoftheB0

s→J/ψf0decaysbeginswiththesearch

forJ/ψcandidatesbycombiningtwomuonsofoppositechargeto formavertexwitha fitprobability >0.5% andaninvariant mass (MJ/ψ) within |MJ/ψ−3097.6 MeV| <150 MeV. To search for f0

candidates,twotracksofoppositechargeassumedtobepionsare constrainedtoavertexwithaprobability>5%.Onepioncandidate must have pT>1 GeV and the other pT>2.5 GeV. In addition,

the f0 candidate must have pT>3.5 GeV and Mf0 in the range |Mf0−974 MeV| <50 MeV.The974 MeVisthemeasuredmassof

f0 signal in datamodeled by a Breit–Wigner function.This value

isconsistent withthe f0 massfromthe Particle Data Group [22]

andthe LHCb measurement [1]. Finally, a vertexis formed with the J/ψ and f0 candidates,constraining thedimuon mass to the

nominalJ/ψ mass [22]. The B_s0→J/ψf0 candidates are required

tohavea vertexprobability >10%, pT>13 GeV, cosαB0

s >0.994,

Fig. 1. Invariantmass distributionofthe B0

s→J/ψ(μ+μ−)f0(π+π−) candidates

(filledcircles).Thesignalismodeled asaGaussian(dot-dashedline),the combina-torialbackgroundasafirst-orderpolynomialfunction(dashed–double-dottedline), andthepeakingbackgroundbyaGaussian(dottedline).Theresultofthetotalfit isshownwiththesolidline.Thebottomplotshowsthepull,whichisthedeviation ofthedatafromthefitdividedbytheuncertaintyinthedata.

where αB0

s is the angle between the direction of the B

0 s

trans-verse momentum andthe vector Lxy, anda proper decaylength

>100 μm.Theproperdecaylengthisdefinedas(Lxy· pTMB/p2T),

where pT is the transverse momentum of the B0s candidate and

MB is theworld-averageB0s mass[22].Inthe caseofmultipleB0s

candidatesperevent,theonewithsmallestB0

s vertexfit χ2 is

se-lected.The selectioncriteriafortheB0

s candidatesareestablished

by maximizing S/√S+B, where S is the signal yield obtained fromMonteCarlo(MC) simulationandB isthe backgroundyield takenfromsidebandregions,definedasthenumberofeventswith a μ+μ−π+π− invariant mass in the range 5.27 to 5.30 GeV or 5.43 to5.46 GeV.

The same procedure and selection criteria are applied to the reconstruction of the normalization channel B0

s →J/ψφ, except

that the invariant massrequirement |Mφ−1020 MeV| <10 MeV

istighterthanthatforthef0.

4. Results

The signal yields of both decay channels are extracted using unbinned maximum-likelihoodfits ofthe massdistributions. The invariant mass distribution of the J/ψ(μ+μ−)f0(π+π−)

candi-dates isshownin Fig. 1.It isfit witha superpositionofa Gaus-sian function representing the signal, a polynomial function to account for the combinatorial background, andanother Gaussian function for any possible peaking background. The latter mod-els resonant structures that could appear in the left sideband of the J/ψ(μ+μ−)f0(π+π−) signal mass owing to the

misidentifi-cation of a kaon as a pion coming from decays such as B0_→

J/ψK∗(892)(K+π−)andB0_s→J/ψK+K−,asexamples.Inaddition, B+→J/ψK+(π+) decays can be a source of background when combined with an extra background pion candidate. When al-lowing all parameters to float, the fit returns Nf0

obs=873 ±49

events anda B0

s mass of 5369.1 ±0.9 MeV, witha resolution of

15.9 ±0.9 MeV, where the uncertainties are statistical only. The measured valuesofthe B0s mass anditsresolution areconsistent

Fig. 2. Invariant mass distribution ofthe B0

s→J/ψ(μ+μ−)φ(K+K−)candidates

(blackfilledcircles).ThesignalmodelisadoubleGaussian(dot-dashedline),while the combinatorial backgroundmodelis aconstantfunction (dash-double-dotted line).Thetotalfitisrepresentedbythesolidline.Thebottomplotshowsthe devi-ationofthedatatothefitdividedbythestatisticaluncertaintyinthedata.

The J/ψ(μ+μ−)φ (K+K−) invariant mass distribution is mod-eled bytwoGaussianfunctionsforthesignalandaconstant func-tion for the combinatorial background. A signal yield of Nφ_obs= 8377±107 eventsisobtained,withaB_s0massof5366.8±0.2 MeV andaresolutionof17.1 ±0.1 MeV,whichareconsistentwiththe MC simulation. The corresponding invariant mass distribution is presentedinFig. 2.

UsingtheMCsimulation,thedetectionefficienciesforthetwo processesarecalculatedastheratioofthereconstructedand gen-eratedyields.TheB0

s mesonproductionissimulatedusing pythia

6.4.24 [23] and its decays simulated with evtgen [24]. The B0 s

mass and lifetime are set to 5369.6 MeV and 438 μm in the simulation. The decay model used for the B0_s →J/ψf0 decay is

a phase-space model reweighted to reflect the spin-1 structure of the J/ψ→μ+μ− decay. The corresponding models for the B0

s→J/ψφdecayare:apseudoscalar–vector–vectorwithCP

viola-tion[25,26]fortheB0

s decay,withparameters[24] A||2=0.24,

A02=0.6,A⊥2=0.16, φ||=2.5, φ0=0, andφ⊥= −0.17;a vector–lepton–lepton model with radiation (photos) [27] forthe J/ψ→μ+μ−decay;andavector–scalar–scalarmodel[24]forthe

φ→K+K− decay. Theeventsare processedwitha Geant4-based detectorsimulation [28] and the same reconstruction algorithms usedondata.InordertovalidatetheMCsimulationsamples, rel-evant kinematicandgeometric variablesof bothsimulated decay channelsarecomparedwiththedataafterbackgroundsubtraction andfound to be inagreement. Forexample,Fig. 3 comparesthe pT and invariant mass distributions of the f0(π+π−) candidates

forbackground-subtracted dataandMC simulation. The f0 width

was setto 50 MeVin theMC simulation.This isconsistent with what isobserved in ourdata asshown inthe Fig. 3.b. The ratio ofthedetectionefficienciesforthetwo B0s decaysiscalculatedto

be φ/f0

reco =1.344 ±0.095, wherethe uncertaintyreflects the

lim-itedsize ofsimulatedsamples.Using thecorresponding valuesof Nf0

obs,N

φ

obs,and 

φ/f0

reco inEq.(1),wemeasure Rf0/φ=0.140 ±0.008,

wheretheuncertaintyisstatisticalonly.

Thestabilityofthe Rf0/φ measurementisverifiedwithcontrol

checksusingdifferentrunperiods,selectioncriteria,andgeometric acceptances.Tostudypossibleeffectsfromvaryingrunconditions,

Fig. 3. Comparison of normalized MC simulation (triangles) and background-subtracteddata(squared)for(a)thepTand(b)invariantmassdistributionsofthe

f0(π+π−)candidates.

thevalueofRf0/φ isdeterminedfortwosubsamples,foundby

di-vidingthedataintotwo.Theratioisalsomeasuredafterchanging theselectioncriteriafortheproperdecaylengthandpT oftheB0s

candidates andthe pT of theleading andsubleading pion

candi-dates,andbyusingdifferentazimuthalangleand ηrequirements forthemuons.Noneofthesecross-checksrevealedanystatistically significantbias.

5. Systematicuncertainties

PotentialsystematicuncertaintiesinthemeasurementofRf0/φ

come from sources such as the B0

s signal yield extraction

proce-dure,therelative efficiencyestimation,andpossiblecontributions to the B0s yields fromother decaysproducing theJ/ψπ+π− and

J/ψK+K−finalstates.

Systematicuncertaintiesinthesignal yieldextractionare esti-matedbychangingthemodelingofthesignalandthebackground invariant mass distributionsin thelikelihood fits.Forthe caseof the B0_s →J/ψf0 mass distribution thesignal shape is changed to

adouble-Gaussianfunctionandthebackgroundtoan exponential function, whilefortheB0

s →J/ψφ massdistributionthesignal is

changedtoaGaussianfunctionanditsbackgroundismodeled asa first-orderpolynomialfunction.Thesechangesleadtoamaximum variationof2.1%inRf0/φ.

There areseveralfactorsthat mayaffecttheestimate of φ/f0

reco.

While the MC simulation package uses a Breit–Wigner model to simulate the f0→π+π− process, it has been pointed out [2,3]

thataFlattémodelisabetterdescriptionofthisdecay.Toestimate theeffectofthe simulationmodel, theBreit–Wigner modelused in the simulation is compared to a Flatté model in the selected Mπ+_π− region.The differenceinthemodels reflectsa systematic errorof5.8%in φ/f0

reco.Thisisquotedasasystematicuncertainty.In

addition,intheMCsimulationthef0 widthissetto50 MeV.This

valueisvariedby ±10 MeV,resultinginasystematicuncertainty of 8.6% in Rf0/φ. The models used in the MC simulation of the

Bs decaysaresettophase-space[24]insteadofthedefaultdecay models,leading toa 6.2%systematicuncertaintyin Rf0/φ.Finally,

thestatistical uncertaintyin φ/f0

reco owing to thefinite numberof

MC events, which corresponds to 7.1%, is added as a systematic uncertainty.

Asmentionedintheintroduction,detailedstudiesofthe π+π−

massspectrumoftheB0

s→J/ψπ+π−decay[2,3]inamass

win-dow of0.3–2.5 GeV, reveal this final state to have contributions fromseveralresonancesin_Mπ+_π−,andthef0componenttorange

from65.0to 94.5% in theentire masswindow studied by LHCb. To studythe effects of the interferences and the f0 fraction

ob-servedbyLHCbintheestimateof φ/f0

reco,themodelreportedin[3]

forthelowestf0fractionandlargestnon-resonantcomponentwas

comparedtothe singleBreit–Wigner modelusedinthe MC sim-ulation of the f0→π+π decay. The comparison in the selected

Mπ+_π− region showsa variation of5.6% in Rf0/φ. Thisis quoted

asasystematicuncertaintycomingfromthissource.Itcanbe ob-servedinthesameLHCbstudythatthecontaminationsfromother resonancesinthemassregion |_Mπ+_π−−974 MeV| <50 MeV are severalordersofmagnitudelowerthanthef0 component,

includ-ingthe non-resonant S-wave. Toestimate thevariation inthe B0_s yieldcomingfromthesepossible contributions,thef0 mass

win-dowiswidenedfrom50to100 MeVaroundthef0mass,resulting

inavariation in Rf0/φ of6.4%that isquoted asa systematic

un-certainty.Forthe B0

s→J/ψK+K− decaychannel,thecontribution

oftheS-waveinaφmasswindowsimilartowhatisusedinthis analysishasbeenfoundtobenegligible[29].

Combining these uncertainties in quadrature leads to a total systematicuncertaintyof16.5%.

6. Summary

Usingdatacollected by theCMSexperimentin proton–proton collisionsat√s=7 TeV, corresponding toan integrated luminos-ityof5.3 fb−1,873±49 eventsofB0_s→J/ψ(μ+μ−)f0(π+π−)and

8377±107 eventsofB0

s→J/ψ(μ+μ−)φ (K+K−)areobserved.The

f0 andφ areidentifiedinthemassranges |Mπ+_π−−974 MeV| <

50 MeV and |MK+K−−1020 MeV| <10 MeV,respectively.The

ra-tioofthebranchingfractionofB0

s→J/ψ(μ+μ−)f0(π+π−)tothe

branchingfractionofB0_s→J/ψ(μ+μ−)φ (K+K−),Rf0/φ,isfoundto

be

B(B0_s→J/ψf0)B(f0→π+π−)

B(B0s→J/ψ φ)B(φ→K+K−)

=0.140±0.008(stat)±0.023(syst). (2)

Thisresultisconsistentwiththetheoreticalpredictionofabout 0.2 [17] and with previous measurements in different ranges of Mπ+_π− [2,4,19].

Acknowledgements

WecongratulateourcolleaguesintheCERNaccelerator depart-ments for the excellent performance of the LHC and thank the technicalandadministrativestaffs atCERN andatother CMS in-stitutes for their contributions to the success of the CMS effort. Inaddition,wegratefullyacknowledgethecomputingcentresand

personneloftheWorldwideLHCComputingGridfordeliveringso effectivelythe computinginfrastructureessential to ouranalyses. Finally, we acknowledge the enduring support for the construc-tion and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); Fonds DeLa Recherche Scientifique – FNRS and FWO (Belgium); CNPq,CAPES,FAPERJ, andFAPESP(Brazil); MES (Bulgaria);CERN; CAS,MoST,andNSFC(China); COLCIENCIAS(Colombia);MSESand CSF (Croatia); RPF (Cyprus); MoER, ERC IUT and ERDF (Estonia); AcademyofFinland,MEC,andHIP(Finland);CEAandCNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA andNIH(Hungary);DAEandDST(India);IPM(Iran);SFI(Ireland); INFN (Italy); MSIPand NRF (Republic of Korea); LAS (Lithuania); MOE and UM(Malaysia); CINVESTAV,CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR(Dubna); MON, RosAtom, RAS andRFBR(Russia);MESTD(Serbia);SEIDIandCPAN(Spain);Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK andTAEK (Turkey); NASU andSFFR(Ukraine);STFC(UnitedKingdom);DOEandNSF(USA).

Individuals have received support from the Marie-Curie pro-gramme and the European Research Council and EPLANET (Eu-ropean Union); the Leventis Foundation; the A.P. Sloan Founda-tion; the Alexander von Humboldt Foundation; the Belgian Fed-eral Science Policy Office; the Fonds pour la Formation à la Recherchedansl’Industrieetdansl’Agriculture(FRIA-Belgium);the AgentschapvoorInnovatiedoorWetenschapenTechnologie (IWT-Belgium); theMinistry ofEducation, YouthandSports (MEYS) of theCzechRepublic;theCouncilofScienceandIndustrialResearch, India; the HOMING PLUS programme of Foundation for Polish Science, cofinanced from European Union, Regional Development Fund;the CompagniadiSan Paolo(Torino); the Consorzioper la Fisica (Trieste); MIURproject20108T4XTM (Italy);the Thalisand Aristeia programmes cofinanced by EU-ESF andthe Greek NSRF; andtheNationalPrioritiesResearchProgrambyQatarNational Re-searchFund.

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CMSCollaboration

V. Khachatryan,A.M. Sirunyan, A. Tumasyan YerevanPhysicsInstitute,Yerevan,Armenia

W. Adam, T. Bergauer, M. Dragicevic,J. Erö, M. Friedl,R. Frühwirth1,V.M. Ghete, C. Hartl, N. Hörmann, J. Hrubec, M. Jeitler1, W. Kiesenhofer,V. Knünz, M. Krammer1, I. Krätschmer,D. Liko, I. Mikulec, D. Rabady2,B. Rahbaran, H. Rohringer, R. Schöfbeck, J. Strauss, W. Treberer-Treberspurg,

W. Waltenberger, C.-E. Wulz1 InstitutfürHochenergiephysikderOeAW,Wien,Austria

V. Mossolov,N. Shumeiko, J. Suarez Gonzalez NationalCentreforParticleandHighEnergyPhysics,Minsk,Belarus

S. Alderweireldt, S. Bansal,T. Cornelis, E.A. De Wolf,X. Janssen, A. Knutsson,J. Lauwers, S. Luyckx, S. Ochesanu,R. Rougny, M. Van De Klundert, H. Van Haevermaet,P. Van Mechelen, N. Van Remortel, A. Van Spilbeeck

UniversiteitAntwerpen,Antwerpen,Belgium

F. Blekman,S. Blyweert, J. D’Hondt,N. Daci, N. Heracleous, J. Keaveney,S. Lowette, M. Maes, A. Olbrechts, Q. Python, D. Strom, S. Tavernier,W. Van Doninck, P. Van Mulders, G.P. Van Onsem, I. Villella

VrijeUniversiteitBrussel,Brussel,Belgium

C. Caillol, B. Clerbaux, G. De Lentdecker, D. Dobur, L. Favart, A.P.R. Gay, A. Grebenyuk,A. Léonard, A. Mohammadi, L. Perniè2, A. Randle-conde,T. Reis,T. Seva, L. Thomas, C. Vander Velde, P. Vanlaer, J. Wang, F. Zenoni

UniversitéLibredeBruxelles,Bruxelles,Belgium

V. Adler,K. Beernaert, L. Benucci, A. Cimmino,S. Costantini, S. Crucy, A. Fagot,G. Garcia, J. Mccartin, A.A. Ocampo Rios, D. Poyraz,D. Ryckbosch, S. Salva Diblen, M. Sigamani,N. Strobbe, F. Thyssen, M. Tytgat, E. Yazgan, N. Zaganidis

S. Basegmez, C. Beluffi3, G. Bruno,R. Castello, A. Caudron, L. Ceard, G.G. Da Silveira,C. Delaere, T. du Pree,D. Favart,L. Forthomme, A. Giammanco4,J. Hollar, A. Jafari,P. Jez, M. Komm, V. Lemaitre, C. Nuttens, D. Pagano,L. Perrini, A. Pin, K. Piotrzkowski,A. Popov5,L. Quertenmont, M. Selvaggi, M. Vidal Marono, J.M. Vizan Garcia

UniversitéCatholiquedeLouvain,Louvain-la-Neuve,Belgium

N. Beliy,T. Caebergs, E. Daubie, G.H. Hammad UniversitédeMons,Mons,Belgium

W.L. Aldá Júnior, G.A. Alves,L. Brito,M. Correa Martins Junior, T. Dos Reis Martins, J. Molina, C. Mora Herrera,M.E. Pol, P. Rebello Teles

CentroBrasileirodePesquisasFisicas,RiodeJaneiro,Brazil

W. Carvalho,J. Chinellato6, A. Custódio, E.M. Da Costa, D. De Jesus Damiao,C. De Oliveira Martins, S. Fonseca De Souza, H. Malbouisson,D. Matos Figueiredo, L. Mundim, H. Nogima,W.L. Prado Da Silva, J. Santaolalla,A. Santoro, A. Sznajder,E.J. Tonelli Manganote6, A. Vilela Pereira

UniversidadedoEstadodoRiodeJaneiro,RiodeJaneiro,Brazil

C.A. Bernardesb, S. Dograa,T.R. Fernandez Perez Tomeia, E.M. Gregoresb, P.G. Mercadanteb, S.F. Novaesa, Sandra S. Padulaa

a_{UniversidadeEstadualPaulista,SãoPaulo,Brazil} b_{UniversidadeFederaldoABC,SãoPaulo,Brazil}

A. Aleksandrov, V. Genchev2, R. Hadjiiska,P. Iaydjiev, A. Marinov, S. Piperov,M. Rodozov, S. Stoykova, G. Sultanov,M. Vutova

InstituteforNuclearResearchandNuclearEnergy,Sofia,Bulgaria

A. Dimitrov,I. Glushkov, L. Litov, B. Pavlov,P. Petkov UniversityofSofia,Sofia,Bulgaria

J.G. Bian,G.M. Chen, H.S. Chen, M. Chen, T. Cheng,R. Du, C.H. Jiang, R. Plestina7, F. Romeo,J. Tao, Z. Wang

InstituteofHighEnergyPhysics,Beijing,China

C. Asawatangtrakuldee, Y. Ban,S. Liu, Y. Mao,S.J. Qian, D. Wang, Z. Xu,L. Zhang, W. Zou StateKeyLaboratoryofNuclearPhysicsandTechnology,PekingUniversity,Beijing,China

C. Avila,A. Cabrera, L.F. Chaparro Sierra, C. Florez,J.P. Gomez, B. Gomez Moreno, J.C. Sanabria UniversidaddeLosAndes,Bogota,Colombia

N. Godinovic, D. Lelas,D. Polic, I. Puljak

UniversityofSplit,FacultyofElectricalEngineering,MechanicalEngineeringandNavalArchitecture,Split,Croatia Z. Antunovic,M. Kovac

UniversityofSplit,FacultyofScience,Split,Croatia

V. Brigljevic,K. Kadija, J. Luetic,D. Mekterovic, L. Sudic InstituteRudjerBoskovic,Zagreb,Croatia

A. Attikis, G. Mavromanolakis,J. Mousa, C. Nicolaou, F. Ptochos,P.A. Razis, H. Rykaczewski UniversityofCyprus,Nicosia,Cyprus

M. Bodlak,M. Finger, M. Finger Jr.8 CharlesUniversity,Prague,CzechRepublic

Y. Assran9, A. Ellithi Kamel10,M.A. Mahmoud11, A. Radi12,13

AcademyofScientificResearchandTechnologyoftheArabRepublicofEgypt,EgyptianNetworkofHighEnergyPhysics,Cairo,Egypt M. Kadastik, M. Murumaa, M. Raidal, A. Tiko

NationalInstituteofChemicalPhysicsandBiophysics,Tallinn,Estonia P. Eerola, M. Voutilainen

DepartmentofPhysics,UniversityofHelsinki,Helsinki,Finland

J. Härkönen,V. Karimäki, R. Kinnunen, M.J. Kortelainen, T. Lampén, K. Lassila-Perini,S. Lehti, T. Lindén, P. Luukka, T. Mäenpää,T. Peltola, E. Tuominen, J. Tuominiemi,E. Tuovinen, L. Wendland

HelsinkiInstituteofPhysics,Helsinki,Finland J. Talvitie, T. Tuuva

LappeenrantaUniversityofTechnology,Lappeenranta,Finland

M. Besancon, F. Couderc,M. Dejardin, D. Denegri, B. Fabbro,J.L. Faure, C. Favaro,F. Ferri, S. Ganjour, A. Givernaud, P. Gras, G. Hamel de Monchenault, P. Jarry,E. Locci, J. Malcles,J. Rander, A. Rosowsky, M. Titov

DSM/IRFU,CEA/Saclay,Gif-sur-Yvette,France

S. Baffioni,F. Beaudette, P. Busson, E. Chapon, C. Charlot,T. Dahms, M. Dalchenko, L. Dobrzynski, N. Filipovic, A. Florent,R. Granier de Cassagnac, L. Mastrolorenzo, P. Miné, I.N. Naranjo, M. Nguyen, C. Ochando, G. Ortona,P. Paganini, S. Regnard, R. Salerno, J.B. Sauvan, Y. Sirois, C. Veelken,Y. Yilmaz, A. Zabi

LaboratoireLeprince-Ringuet,EcolePolytechnique,IN2P3-CNRS,Palaiseau,France

J.-L. Agram14, J. Andrea, A. Aubin, D. Bloch,J.-M. Brom, E.C. Chabert,C. Collard, E. Conte14, J.-C. Fontaine14,D. Gelé, U. Goerlach, C. Goetzmann,A.-C. Le Bihan, K. Skovpen, P. Van Hove InstitutPluridisciplinaireHubertCurien,UniversitédeStrasbourg,UniversitédeHauteAlsaceMulhouse,CNRS/IN2P3,Strasbourg,France

S. Gadrat

CentredeCalculdel’InstitutNationaldePhysiqueNucleaireetdePhysiquedesParticules,CNRS/IN2P3,Villeurbanne,France

S. Beauceron,N. Beaupere, C. Bernet7,G. Boudoul2, E. Bouvier, S. Brochet, C.A. Carrillo Montoya, J. Chasserat, R. Chierici,D. Contardo2,B. Courbon, P. Depasse, H. El Mamouni, J. Fan, J. Fay, S. Gascon, M. Gouzevitch, B. Ille, T. Kurca, M. Lethuillier, L. Mirabito,A.L. Pequegnot, S. Perries, J.D. Ruiz Alvarez, D. Sabes,L. Sgandurra, V. Sordini,M. Vander Donckt, P. Verdier,S. Viret, H. Xiao

UniversitédeLyon,UniversitéClaudeBernardLyon1,CNRS-IN2P3,InstitutdePhysiqueNucléairedeLyon,Villeurbanne,France Z. Tsamalaidze8

InstituteofHighEnergyPhysicsandInformatization,TbilisiStateUniversity,Tbilisi,Georgia

C. Autermann, S. Beranek,M. Bontenackels, M. Edelhoff,L. Feld, A. Heister, K. Klein,M. Lipinski, A. Ostapchuk, M. Preuten,F. Raupach, J. Sammet, S. Schael, J.F. Schulte, H. Weber, B. Wittmer, V. Zhukov5

M. Ata, M. Brodski,E. Dietz-Laursonn, D. Duchardt, M. Erdmann,R. Fischer, A. Güth, T. Hebbeker, C. Heidemann,K. Hoepfner,D. Klingebiel, S. Knutzen,P. Kreuzer, M. Merschmeyer,A. Meyer, P. Millet, M. Olschewski, K. Padeken,P. Papacz, H. Reithler,S.A. Schmitz,L. Sonnenschein, D. Teyssier,S. Thüer RWTHAachenUniversity,III.PhysikalischesInstitutA,Aachen,Germany

V. Cherepanov, Y. Erdogan,G. Flügge, H. Geenen, M. Geisler, W. Haj Ahmad, F. Hoehle,B. Kargoll, T. Kress,Y. Kuessel, A. Künsken, J. Lingemann2,A. Nowack, I.M. Nugent,C. Pistone, O. Pooth,A. Stahl RWTHAachenUniversity,III.PhysikalischesInstitutB,Aachen,Germany

M. Aldaya Martin,I. Asin, N. Bartosik, J. Behr, U. Behrens,A.J. Bell, A. Bethani,K. Borras, A. Burgmeier, A. Cakir,L. Calligaris, A. Campbell,S. Choudhury, F. Costanza, C. Diez Pardos,G. Dolinska,S. Dooling, T. Dorland,G. Eckerlin, D. Eckstein, T. Eichhorn, G. Flucke, J. Garay Garcia, A. Geiser, A. Gizhko, P. Gunnellini, J. Hauk, M. Hempel15,H. Jung, A. Kalogeropoulos, O. Karacheban15, M. Kasemann, P. Katsas, J. Kieseler, C. Kleinwort,I. Korol, D. Krücker,W. Lange, J. Leonard, K. Lipka,A. Lobanov, W. Lohmann15,B. Lutz, R. Mankel, I. Marfin15, I.-A. Melzer-Pellmann,A.B. Meyer, G. Mittag, J. Mnich, A. Mussgiller,S. Naumann-Emme, A. Nayak,E. Ntomari, H. Perrey,D. Pitzl, R. Placakyte, A. Raspereza, P.M. Ribeiro Cipriano,B. Roland, E. Ron, M.Ö. Sahin,J. Salfeld-Nebgen, P. Saxena,T. Schoerner-Sadenius, M. Schröder,C. Seitz, S. Spannagel, A.D.R. Vargas Trevino, R. Walsh, C. Wissing

DeutschesElektronen-Synchrotron,Hamburg,Germany

V. Blobel, M. Centis Vignali, A.R. Draeger,J. Erfle, E. Garutti,K. Goebel, M. Görner, J. Haller, M. Hoffmann,R.S. Höing,A. Junkes, H. Kirschenmann, R. Klanner, R. Kogler,T. Lapsien, T. Lenz,

I. Marchesini,D. Marconi, J. Ott, T. Peiffer, A. Perieanu, N. Pietsch,J. Poehlsen,T. Poehlsen, D. Rathjens, C. Sander,H. Schettler, P. Schleper, E. Schlieckau, A. Schmidt, M. Seidel, V. Sola,H. Stadie, G. Steinbrück, D. Troendle,E. Usai, L. Vanelderen, A. Vanhoefer

UniversityofHamburg,Hamburg,Germany

C. Barth,C. Baus, J. Berger,C. Böser, E. Butz, T. Chwalek, W. De Boer,A. Descroix, A. Dierlamm, M. Feindt,F. Frensch, M. Giffels, A. Gilbert,F. Hartmann2,T. Hauth, U. Husemann, I. Katkov5,

A. Kornmayer2, P. Lobelle Pardo, M.U. Mozer,T. Müller, Th. Müller, A. Nürnberg, G. Quast, K. Rabbertz, S. Röcker,H.J. Simonis, F.M. Stober,R. Ulrich, J. Wagner-Kuhr, S. Wayand, T. Weiler, R. Wolf

InstitutfürExperimentelleKernphysik,Karlsruhe,Germany

G. Anagnostou,G. Daskalakis, T. Geralis,V.A. Giakoumopoulou, A. Kyriakis, D. Loukas,A. Markou, C. Markou, A. Psallidas,I. Topsis-Giotis

InstituteofNuclearandParticlePhysics(INPP),NCSRDemokritos,AghiaParaskevi,Greece

A. Agapitos,S. Kesisoglou, A. Panagiotou,N. Saoulidou, E. Stiliaris, E. Tziaferi UniversityofAthens,Athens,Greece

X. Aslanoglou,I. Evangelou, G. Flouris,C. Foudas, P. Kokkas, N. Manthos, I. Papadopoulos,E. Paradas, J. Strologas

UniversityofIoánnina,Ioánnina,Greece

G. Bencze,C. Hajdu, P. Hidas,D. Horvath16, F. Sikler,V. Veszpremi, G. Vesztergombi17, A.J. Zsigmond WignerResearchCentreforPhysics,Budapest,Hungary

N. Beni,S. Czellar, J. Karancsi18,J. Molnar, J. Palinkas, Z. Szillasi InstituteofNuclearResearchATOMKI,Debrecen,Hungary

A. Makovec,P. Raics, Z.L. Trocsanyi, B. Ujvari UniversityofDebrecen,Debrecen,Hungary

S.K. Swain

NationalInstituteofScienceEducationandResearch,Bhubaneswar,India

S.B. Beri, V. Bhatnagar,R. Gupta, U. Bhawandeep, A.K. Kalsi, M. Kaur, R. Kumar,M. Mittal, N. Nishu, J.B. Singh

PanjabUniversity,Chandigarh,India

Ashok Kumar, Arun Kumar,S. Ahuja, A. Bhardwaj, B.C. Choudhary,A. Kumar, S. Malhotra,M. Naimuddin, K. Ranjan,V. Sharma

UniversityofDelhi,Delhi,India

S. Banerjee, S. Bhattacharya, K. Chatterjee,S. Dutta, B. Gomber, Sa. Jain, Sh. Jain,R. Khurana, A. Modak, S. Mukherjee,D. Roy, S. Sarkar, M. Sharan

SahaInstituteofNuclearPhysics,Kolkata,India

A. Abdulsalam, D. Dutta, V. Kumar, A.K. Mohanty2,L.M. Pant, P. Shukla, A. Topkar BhabhaAtomicResearchCentre,Mumbai,India

T. Aziz, S. Banerjee, S. Bhowmik19,R.M. Chatterjee, R.K. Dewanjee, S. Dugad, S. Ganguly,S. Ghosh, M. Guchait,A. Gurtu20,G. Kole, S. Kumar, M. Maity19, G. Majumder, K. Mazumdar,G.B. Mohanty, B. Parida,K. Sudhakar, N. Wickramage21

TataInstituteofFundamentalResearch,Mumbai,India S. Sharma

IndianInstituteofScienceEducationandResearch(IISER),Pune,India

H. Bakhshiansohi,H. Behnamian, S.M. Etesami22, A. Fahim23, R. Goldouzian, M. Khakzad,

M. Mohammadi Najafabadi, M. Naseri, S. Paktinat Mehdiabadi, F. Rezaei Hosseinabadi, B. Safarzadeh24, M. Zeinali

InstituteforResearchinFundamentalSciences(IPM),Tehran,Iran M. Felcini,M. Grunewald

UniversityCollegeDublin,Dublin,Ireland

M. Abbresciaa,b, C. Calabriaa,b,S.S. Chhibraa,b, A. Colaleoa, D. Creanzaa,c,L. Cristellaa,b,

N. De Filippisa,c, M. De Palmaa,b,L. Fiorea,G. Iasellia,c,G. Maggia,c,M. Maggia, S. Mya,c, S. Nuzzoa,b, A. Pompilia,b,G. Pugliesea,c,R. Radognaa,b,2, G. Selvaggia,b, A. Sharmaa, L. Silvestrisa,2, R. Vendittia,b, P. Verwilligena

a_{INFNSezionediBari,Bari,Italy} b_{UniversitàdiBari,Bari,Italy} c_{PolitecnicodiBari,Bari,Italy}

G. Abbiendia,A.C. Benvenutia,D. Bonacorsia,b, S. Braibant-Giacomellia,b, L. Brigliadoria,b, R. Campaninia,b, P. Capiluppia,b,A. Castroa,b,F.R. Cavalloa, G. Codispotia,b, M. Cuffiania,b,

G.M. Dallavallea,F. Fabbria, A. Fanfania,b, D. Fasanellaa,b,P. Giacomellia,C. Grandia,L. Guiduccia,b, S. Marcellinia, G. Masettia, A. Montanaria, F.L. Navarriaa,b,A. Perrottaa, A.M. Rossia,b,T. Rovellia,b, G.P. Sirolia,b,N. Tosia,b, R. Travaglinia,b

a_{INFNSezionediBologna,Bologna,Italy} b_{UniversitàdiBologna,Bologna,Italy}

S. Albergoa,b,G. Cappelloa, M. Chiorbolia,b, S. Costaa,b, F. Giordanoa,2,R. Potenzaa,b, A. Tricomia,b, C. Tuvea,b

a_{INFNSezionediCatania,Catania,Italy} b_{UniversitàdiCatania,Catania,Italy} c_{CSFNSM,Catania,Italy}

G. Barbaglia,V. Ciullia,b,C. Civininia, R. D’Alessandroa,b, E. Focardia,b,E. Galloa, S. Gonzia,b, V. Goria,b, P. Lenzia,b, M. Meschinia, S. Paolettia,G. Sguazzonia,A. Tropianoa,b

a_{INFNSezionediFirenze,Firenze,Italy} b_{UniversitàdiFirenze,Firenze,Italy}

L. Benussi,S. Bianco, F. Fabbri, D. Piccolo INFNLaboratoriNazionalidiFrascati,Frascati,Italy

R. Ferrettia,b,F. Ferroa,M. Lo Veterea,b,E. Robuttia, S. Tosia,b

a_{INFNSezionediGenova,Genova,Italy} b_{UniversitàdiGenova,Genova,Italy}

M.E. Dinardoa,b, S. Fiorendia,b, S. Gennaia,2, R. Gerosaa,b,2,A. Ghezzia,b, P. Govonia,b,M.T. Lucchinia,b,2, S. Malvezzia, R.A. Manzonia,b, A. Martellia,b, B. Marzocchia,b,2, D. Menascea,L. Moronia,

M. Paganonia,b,D. Pedrinia, S. Ragazzia,b, N. Redaellia,T. Tabarelli de Fatisa,b

a_{INFNSezionediMilano-Bicocca,Milano,Italy} b_{UniversitàdiMilano-Bicocca,Milano,Italy}

S. Buontempoa, N. Cavalloa,c,S. Di Guidaa,d,2, F. Fabozzia,c,A.O.M. Iorioa,b, L. Listaa,S. Meolaa,d,2, M. Merolaa, P. Paoluccia,2

a_{INFNSezionediNapoli,Napoli,Italy} b_{UniversitàdiNapoli‘FedericoII’,Napoli,Italy} c_{UniversitàdellaBasilicata(Potenza),Napoli,Italy} d_{UniversitàG.Marconi(Roma),Napoli,Italy}

P. Azzia, N. Bacchettaa, D. Biselloa,b, R. Carlina,b, P. Checchiaa,M. Dall’Ossoa,b, T. Dorigoa, F. Gasparinia,b, U. Gasparinia,b,A. Gozzelinoa,M. Gulminia,25,K. Kanishcheva,c,S. Lacapraraa, M. Margonia,b, A.T. Meneguzzoa,b,M. Passaseoa, J. Pazzinia,b, N. Pozzobona,b, P. Ronchesea,b, F. Simonettoa,b,E. Torassaa,M. Tosia,b,P. Zottoa,b,A. Zucchettaa,b,G. Zumerlea,b

a_{INFNSezionediPadova,Padova,Italy} b_{UniversitàdiPadova,Padova,Italy} c_{UniversitàdiTrento(Trento),Padova,Italy}

M. Gabusia,b,S.P. Rattia,b, V. Rea,C. Riccardia,b,P. Salvinia,P. Vituloa,b

a_{INFNSezionediPavia,Pavia,Italy} b_{UniversitàdiPavia,Pavia,Italy}

M. Biasinia,b,G.M. Bileia,D. Ciangottinia,b,2,L. Fanòa,b, P. Laricciaa,b, G. Mantovania,b, M. Menichellia, A. Sahaa, A. Santocchiaa,b,A. Spieziaa,b,2

a_{INFNSezionediPerugia,Perugia,Italy} b_{UniversitàdiPerugia,Perugia,Italy}

K. Androsova,26,P. Azzurria,G. Bagliesia,J. Bernardinia,T. Boccalia,G. Broccoloa,c,R. Castaldia, M.A. Cioccia,26,R. Dell’Orsoa, S. Donatoa,c,2,G. Fedi, F. Fioria,c,L. Foàa,c,A. Giassia, M.T. Grippoa,26, F. Ligabuea,c,T. Lomtadzea,L. Martinia,b, A. Messineoa,b, C.S. Moona,27, F. Pallaa,2, A. Rizzia,b, A. Savoy-Navarroa,28,A.T. Serbana, P. Spagnoloa, P. Squillaciotia,26,R. Tenchinia,G. Tonellia,b, A. Venturia,P.G. Verdinia,C. Vernieria,c

a_{INFNSezionediPisa,Pisa,Italy} b_{UniversitàdiPisa,Pisa,Italy}

c_{ScuolaNormaleSuperiorediPisa,Pisa,Italy}

L. Baronea,b, F. Cavallaria,G. D’imperioa,b,D. Del Rea,b, M. Diemoza,C. Jordaa, E. Longoa,b,

F. Margarolia,b, P. Meridiania,F. Michelia,b,2,G. Organtinia,b, R. Paramattia,S. Rahatloua,b, C. Rovellia, F. Santanastasioa,b, L. Soffia,b,P. Traczyka,b,2

a_{INFNSezionediRoma,Roma,Italy} b_{UniversitàdiRoma,Roma,Italy}

N. Amapanea,b, R. Arcidiaconoa,c,S. Argiroa,b,M. Arneodoa,c,R. Bellana,b, C. Biinoa, N. Cartigliaa, S. Casassoa,b,2, M. Costaa,b, R. Covarelli,A. Deganoa,b, N. Demariaa,L. Fincoa,b,2, C. Mariottia, S. Masellia, E. Migliorea,b,V. Monacoa,b,M. Musicha, M.M. Obertinoa,c,L. Pachera,b,N. Pastronea, M. Pelliccionia,G.L. Pinna Angionia,b, A. Potenzaa,b,A. Romeroa,b, M. Ruspaa,c,R. Sacchia,b, A. Solanoa,b, A. Staianoa, U. Tamponia

a_{INFNSezionediTorino,Torino,Italy} b_{UniversitàdiTorino,Torino,Italy}

c_{UniversitàdelPiemonteOrientale(Novara),Torino,Italy}

S. Belfortea,V. Candelisea,b,2, M. Casarsaa,F. Cossuttia, G. Della Riccaa,b,B. Gobboa,C. La Licataa,b, M. Maronea,b,A. Schizzia,b, T. Umera,b,A. Zanettia

a_{INFNSezionediTrieste,Trieste,Italy} b_{UniversitàdiTrieste,Trieste,Italy}

S. Chang, A. Kropivnitskaya,S.K. Nam KangwonNationalUniversity,Chunchon,RepublicofKorea

D.H. Kim,G.N. Kim, M.S. Kim,D.J. Kong, S. Lee, Y.D. Oh,H. Park, A. Sakharov, D.C. Son KyungpookNationalUniversity,Daegu,RepublicofKorea

T.J. Kim, M.S. Ryu

ChonbukNationalUniversity,Jeonju,RepublicofKorea J.Y. Kim, D.H. Moon,S. Song

ChonnamNationalUniversity,InstituteforUniverseandElementaryParticles,Kwangju,RepublicofKorea

S. Choi, D. Gyun,B. Hong, M. Jo,H. Kim, Y. Kim,B. Lee, K.S. Lee, S.K. Park,Y. Roh KoreaUniversity,Seoul,RepublicofKorea

H.D. Yoo

SeoulNationalUniversity,Seoul,RepublicofKorea M. Choi,J.H. Kim, I.C. Park, G. Ryu UniversityofSeoul,Seoul,RepublicofKorea

Y. Choi,Y.K. Choi, J. Goh,D. Kim, E. Kwon, J. Lee, I. Yu SungkyunkwanUniversity,Suwon,RepublicofKorea

A. Juodagalvis VilniusUniversity,Vilnius,Lithuania

J.R. Komaragiri, M.A.B. Md Ali,W.A.T. Wan Abdullah NationalCentreforParticlePhysics,UniversitiMalaya,KualaLumpur,Malaysia

E. Casimiro Linares, H. Castilla-Valdez, E. De La Cruz-Burelo,I. Heredia-de La Cruz, A. Hernandez-Almada,R. Lopez-Fernandez, A. Sanchez-Hernandez

CentrodeInvestigacionydeEstudiosAvanzadosdelIPN,MexicoCity,Mexico S. Carrillo Moreno, F. Vazquez Valencia UniversidadIberoamericana,MexicoCity,Mexico

I. Pedraza, H.A. Salazar Ibarguen BenemeritaUniversidadAutonomadePuebla,Puebla,Mexico

A. Morelos Pineda

UniversidadAutónomadeSanLuisPotosí,SanLuisPotosí,Mexico D. Krofcheck

UniversityofAuckland,Auckland,NewZealand P.H. Butler,S. Reucroft

UniversityofCanterbury,Christchurch,NewZealand

A. Ahmad, M. Ahmad, Q. Hassan,H.R. Hoorani, W.A. Khan,T. Khurshid, M. Shoaib NationalCentreforPhysics,Quaid-I-AzamUniversity,Islamabad,Pakistan

H. Bialkowska,M. Bluj, B. Boimska,T. Frueboes, M. Górski, M. Kazana, K. Nawrocki, K. Romanowska-Rybinska,M. Szleper, P. Zalewski

NationalCentreforNuclearResearch,Swierk,Poland

G. Brona,K. Bunkowski, M. Cwiok,W. Dominik,K. Doroba, A. Kalinowski,M. Konecki, J. Krolikowski, M. Misiura, M. Olszewski

InstituteofExperimentalPhysics,FacultyofPhysics,UniversityofWarsaw,Warsaw,Poland

P. Bargassa,C. Beirão Da Cruz E Silva, P. Faccioli, P.G. Ferreira Parracho,M. Gallinaro, L. Lloret Iglesias, F. Nguyen, J. Rodrigues Antunes,J. Seixas, J. Varela, P. Vischia

LaboratóriodeInstrumentaçãoeFísicaExperimentaldePartículas,Lisboa,Portugal

M. Gavrilenko,I. Golutvin, A. Kamenev, V. Karjavin, V. Konoplyanikov, V. Korenkov,G. Kozlov, A. Lanev, A. Malakhov,V. Matveev29,V.V. Mitsyn, P. Moisenz, V. Palichik,V. Perelygin, S. Shmatov, V. Smirnov, E. Tikhonenko, A. Zarubin

JointInstituteforNuclearResearch,Dubna,Russia

V. Golovtsov,Y. Ivanov, V. Kim30,E. Kuznetsova, P. Levchenko, V. Murzin, V. Oreshkin, I. Smirnov, V. Sulimov,L. Uvarov, S. Vavilov, A. Vorobyev,An. Vorobyev

PetersburgNuclearPhysicsInstitute,Gatchina(St.Petersburg),Russia

Yu. Andreev,A. Dermenev,S. Gninenko, N. Golubev, M. Kirsanov, N. Krasnikov, A. Pashenkov, D. Tlisov, A. Toropin

InstituteforNuclearResearch,Moscow,Russia

V. Epshteyn,V. Gavrilov, N. Lychkovskaya,V. Popov, I. Pozdnyakov,G. Safronov, S. Semenov, A. Spiridonov,V. Stolin, E. Vlasov,A. Zhokin

InstituteforTheoreticalandExperimentalPhysics,Moscow,Russia

V. Andreev,M. Azarkin31,I. Dremin31, M. Kirakosyan, A. Leonidov31,G. Mesyats, S.V. Rusakov, A. Vinogradov

P.N.LebedevPhysicalInstitute,Moscow,Russia

A. Belyaev,E. Boos,M. Dubinin32, L. Dudko,A. Ershov, A. Gribushin,V. Klyukhin, O. Kodolova,I. Lokhtin, S. Obraztsov,S. Petrushanko,V. Savrin, A. Snigirev

SkobeltsynInstituteofNuclearPhysics,LomonosovMoscowStateUniversity,Moscow,Russia

I. Azhgirey,I. Bayshev,S. Bitioukov, V. Kachanov, A. Kalinin, D. Konstantinov,V. Krychkine, V. Petrov, R. Ryutin, A. Sobol,L. Tourtchanovitch, S. Troshin, N. Tyurin, A. Uzunian,A. Volkov

P. Adzic33, M. Ekmedzic,J. Milosevic,V. Rekovic UniversityofBelgrade,FacultyofPhysicsandVincaInstituteofNuclearSciences,Belgrade,Serbia

J. Alcaraz Maestre, C. Battilana,E. Calvo, M. Cerrada,M. Chamizo Llatas, N. Colino, B. De La Cruz, A. Delgado Peris,D. Domínguez Vázquez, A. Escalante Del Valle, C. Fernandez Bedoya,

J.P. Fernández Ramos,J. Flix, M.C. Fouz,P. Garcia-Abia,O. Gonzalez Lopez, S. Goy Lopez, J.M. Hernandez, M.I. Josa,E. Navarro De Martino, A. Pérez-Calero Yzquierdo, J. Puerta Pelayo, A. Quintario Olmeda, I. Redondo,L. Romero, M.S. Soares

CentrodeInvestigacionesEnergéticasMedioambientalesyTecnológicas(CIEMAT),Madrid,Spain C. Albajar, J.F. de Trocóniz, M. Missiroli, D. Moran UniversidadAutónomadeMadrid,Madrid,Spain

H. Brun, J. Cuevas,J. Fernandez Menendez, S. Folgueras, I. Gonzalez Caballero UniversidaddeOviedo,Oviedo,Spain

J.A. Brochero Cifuentes, I.J. Cabrillo, A. Calderon, J. Duarte Campderros,M. Fernandez, G. Gomez, A. Graziano, A. Lopez Virto,J. Marco, R. Marco,C. Martinez Rivero, F. Matorras, F.J. Munoz Sanchez, J. Piedra Gomez, T. Rodrigo,A.Y. Rodríguez-Marrero,A. Ruiz-Jimeno, L. Scodellaro,I. Vila,

R. Vilar Cortabitarte

InstitutodeFísicadeCantabria(IFCA),CSIC-UniversidaddeCantabria,Santander,Spain

D. Abbaneo, E. Auffray, G. Auzinger, M. Bachtis,P. Baillon, A.H. Ball, D. Barney, A. Benaglia, J. Bendavid, L. Benhabib,J.F. Benitez, P. Bloch, A. Bocci, A. Bonato, O. Bondu,C. Botta, H. Breuker, T. Camporesi, G. Cerminara, S. Colafranceschi34,M. D’Alfonso, D. d’Enterria, A. Dabrowski, A. David,F. De Guio, A. De Roeck, S. De Visscher, E. Di Marco,M. Dobson, M. Dordevic, B. Dorney, N. Dupont-Sagorin, A. Elliott-Peisert, G. Franzoni, W. Funk, D. Gigi,K. Gill, D. Giordano, M. Girone,F. Glege, R. Guida, S. Gundacker, M. Guthoff,J. Hammer, M. Hansen,P. Harris,J. Hegeman, V. Innocente, P. Janot, K. Kousouris,K. Krajczar, P. Lecoq,C. Lourenço, N. Magini, L. Malgeri,M. Mannelli, J. Marrouche,

L. Masetti, F. Meijers, S. Mersi,E. Meschi, F. Moortgat, S. Morovic, M. Mulders, L. Orsini, L. Pape,E. Perez, A. Petrilli, G. Petrucciani,A. Pfeiffer, M. Pimiä, D. Piparo, M. Plagge, A. Racz,G. Rolandi35, M. Rovere, H. Sakulin, C. Schäfer, C. Schwick,A. Sharma,P. Siegrist, P. Silva,M. Simon, P. Sphicas36,D. Spiga,

J. Steggemann,B. Stieger, M. Stoye,Y. Takahashi, D. Treille, A. Tsirou, G.I. Veres17,N. Wardle, H.K. Wöhri, H. Wollny, W.D. Zeuner

CERN,EuropeanOrganizationforNuclearResearch,Geneva,Switzerland

W. Bertl,K. Deiters, W. Erdmann, R. Horisberger, Q. Ingram, H.C. Kaestli, D. Kotlinski,U. Langenegger, D. Renker, T. Rohe

PaulScherrerInstitut,Villigen,Switzerland

F. Bachmair, L. Bäni, L. Bianchini, M.A. Buchmann,B. Casal, N. Chanon, G. Dissertori, M. Dittmar, M. Donegà, M. Dünser,P. Eller, C. Grab,D. Hits, J. Hoss,G. Kasieczka, W. Lustermann,B. Mangano, A.C. Marini,M. Marionneau, P. Martinez Ruiz del Arbol,M. Masciovecchio, D. Meister, N. Mohr, P. Musella, C. Nägeli37, F. Nessi-Tedaldi, F. Pandolfi, F. Pauss,L. Perrozzi, M. Peruzzi,M. Quittnat, L. Rebane, M. Rossini,A. Starodumov38, M. Takahashi, K. Theofilatos,R. Wallny, H.A. Weber InstituteforParticlePhysics,ETHZurich,Zurich,Switzerland

C. Amsler39, M.F. Canelli,V. Chiochia,A. De Cosa, A. Hinzmann, T. Hreus, B. Kilminster, C. Lange, J. Ngadiuba,D. Pinna, P. Robmann, F.J. Ronga,S. Taroni, Y. Yang

M. Cardaci,K.H. Chen, C. Ferro, C.M. Kuo, W. Lin, Y.J. Lu,R. Volpe, S.S. Yu NationalCentralUniversity,Chung-Li,Taiwan

P. Chang, Y.H. Chang,Y. Chao, K.F. Chen, P.H. Chen, C. Dietz, U. Grundler,W.-S. Hou,Y.F. Liu, R.-S. Lu, M. Miñano Moya,E. Petrakou, Y.M. Tzeng,R. Wilken

NationalTaiwanUniversity(NTU),Taipei,Taiwan

B. Asavapibhop,G. Singh, N. Srimanobhas, N. Suwonjandee ChulalongkornUniversity,FacultyofScience,DepartmentofPhysics,Bangkok,Thailand

A. Adiguzel, M.N. Bakirci40,S. Cerci41, C. Dozen,I. Dumanoglu, E. Eskut, S. Girgis, G. Gokbulut, Y. Guler, E. Gurpinar,I. Hos, E.E. Kangal42,A. Kayis Topaksu, G. Onengut43,K. Ozdemir44,S. Ozturk40, A. Polatoz, D. Sunar Cerci41, B. Tali41, H. Topakli40, M. Vergili, C. Zorbilmez

CukurovaUniversity,Adana,Turkey

I.V. Akin,B. Bilin, S. Bilmis, H. Gamsizkan45, B. Isildak46, G. Karapinar47,K. Ocalan48,S. Sekmen, U.E. Surat,M. Yalvac, M. Zeyrek

MiddleEastTechnicalUniversity,PhysicsDepartment,Ankara,Turkey

E.A. Albayrak49, E. Gülmez,M. Kaya50,O. Kaya51, T. Yetkin52 BogaziciUniversity,Istanbul,Turkey

K. Cankocak,F.I. Vardarlı IstanbulTechnicalUniversity,Istanbul,Turkey L. Levchuk,P. Sorokin

NationalScientificCenter,KharkovInstituteofPhysicsandTechnology,Kharkov,Ukraine

J.J. Brooke,E. Clement, D. Cussans,H. Flacher, J. Goldstein,M. Grimes, G.P. Heath, H.F. Heath,J. Jacob, L. Kreczko,C. Lucas, Z. Meng, D.M. Newbold53,S. Paramesvaran, A. Poll, T. Sakuma,S. Seif El Nasr-storey, S. Senkin,V.J. Smith

UniversityofBristol,Bristol,UnitedKingdom

K.W. Bell,A. Belyaev54,C. Brew, R.M. Brown, D.J.A. Cockerill, J.A. Coughlan, K. Harder,S. Harper, E. Olaiya,D. Petyt, C.H. Shepherd-Themistocleous, A. Thea,I.R. Tomalin, T. Williams, W.J. Womersley, S.D. Worm

RutherfordAppletonLaboratory,Didcot,UnitedKingdom

M. Baber,R. Bainbridge, O. Buchmuller, D. Burton,D. Colling, N. Cripps,P. Dauncey, G. Davies, M. Della Negra,P. Dunne, A. Elwood, W. Ferguson, J. Fulcher, D. Futyan,G. Hall, G. Iles, M. Jarvis, G. Karapostoli,M. Kenzie, R. Lane,R. Lucas53,L. Lyons, A.-M. Magnan, S. Malik,B. Mathias, J. Nash, A. Nikitenko38,J. Pela, M. Pesaresi, K. Petridis,D.M. Raymond, S. Rogerson, A. Rose,C. Seez, P. Sharp†, A. Tapper,M. Vazquez Acosta, T. Virdee,S.C. Zenz

ImperialCollege,London,UnitedKingdom

J.E. Cole, P.R. Hobson,A. Khan, P. Kyberd,D. Leggat, D. Leslie,I.D. Reid, P. Symonds, L. Teodorescu, M. Turner

BrunelUniversity,Uxbridge,UnitedKingdom

J. Dittmann, K. Hatakeyama,A. Kasmi, H. Liu, N. Pastika, T. Scarborough,Z. Wu BaylorUniversity,Waco,USA

O. Charaf,S.I. Cooper, C. Henderson, P. Rumerio TheUniversityofAlabama,Tuscaloosa,USA

A. Avetisyan, T. Bose,C. Fantasia, P. Lawson, C. Richardson, J. Rohlf, J. St. John,L. Sulak BostonUniversity,Boston,USA

J. Alimena,E. Berry, S. Bhattacharya, G. Christopher, D. Cutts, Z. Demiragli, N. Dhingra, A. Ferapontov, A. Garabedian,U. Heintz, E. Laird, G. Landsberg, Z. Mao,M. Narain, S. Sagir,T. Sinthuprasith, T. Speer, J. Swanson

BrownUniversity,Providence,USA

R. Breedon,G. Breto, M. Calderon De La Barca Sanchez, S. Chauhan,M. Chertok, J. Conway,R. Conway, P.T. Cox, R. Erbacher,M. Gardner,W. Ko, R. Lander,M. Mulhearn, D. Pellett, J. Pilot, F. Ricci-Tam, S. Shalhout, J. Smith, M. Squires, D. Stolp, M. Tripathi, S. Wilbur,R. Yohay

UniversityofCalifornia,Davis,Davis,USA

R. Cousins,P. Everaerts,C. Farrell, J. Hauser, M. Ignatenko, G. Rakness, E. Takasugi, V. Valuev,M. Weber UniversityofCalifornia,LosAngeles,USA

K. Burt, R. Clare,J. Ellison, J.W. Gary, G. Hanson,J. Heilman, M. Ivova Rikova, P. Jandir, E. Kennedy, F. Lacroix,O.R. Long, A. Luthra, M. Malberti, M. Olmedo Negrete, A. Shrinivas,S. Sumowidagdo, S. Wimpenny

UniversityofCalifornia,Riverside,Riverside,USA

J.G. Branson, G.B. Cerati,S. Cittolin,R.T. D’Agnolo, A. Holzner, R. Kelley, D. Klein, J. Letts, I. Macneill, D. Olivito, S. Padhi, C. Palmer,M. Pieri, M. Sani, V. Sharma,S. Simon, M. Tadel,Y. Tu, A. Vartak,C. Welke, F. Würthwein,A. Yagil, G. Zevi Della Porta

UniversityofCalifornia,SanDiego,LaJolla,USA

D. Barge, J. Bradmiller-Feld, C. Campagnari, T. Danielson, A. Dishaw,V. Dutta, K. Flowers,

M. Franco Sevilla,P. Geffert, C. George, F. Golf, L. Gouskos,J. Incandela, C. Justus,N. Mccoll, S.D. Mullin, J. Richman, D. Stuart,W. To,C. West, J. Yoo

UniversityofCalifornia,SantaBarbara,SantaBarbara,USA

A. Apresyan,A. Bornheim, J. Bunn, Y. Chen, J. Duarte,A. Mott, H.B. Newman, C. Pena, M. Pierini, M. Spiropulu, J.R. Vlimant,R. Wilkinson, S. Xie, R.Y. Zhu

CaliforniaInstituteofTechnology,Pasadena,USA

V. Azzolini,A. Calamba, B. Carlson, T. Ferguson, Y. Iiyama, M. Paulini,J. Russ, H. Vogel,I. Vorobiev CarnegieMellonUniversity,Pittsburgh,USA

J.P. Cumalat, W.T. Ford,A. Gaz, M. Krohn, E. Luiggi Lopez,U. Nauenberg, J.G. Smith, K. Stenson, S.R. Wagner

UniversityofColoradoatBoulder,Boulder,USA

J. Alexander, A. Chatterjee, J. Chaves,J. Chu, S. Dittmer, N. Eggert, N. Mirman, G. Nicolas Kaufman, J.R. Patterson,A. Ryd, E. Salvati, L. Skinnari,W. Sun, W.D. Teo, J. Thom, J. Thompson, J. Tucker, Y. Weng, L. Winstrom,P. Wittich

CornellUniversity,Ithaca,USA D. Winn

S. Abdullin,M. Albrow, J. Anderson, G. Apollinari, L.A.T. Bauerdick, A. Beretvas, J. Berryhill,P.C. Bhat, G. Bolla,K. Burkett,J.N. Butler, H.W.K. Cheung, F. Chlebana, S. Cihangir,V.D. Elvira, I. Fisk, J. Freeman, E. Gottschalk,L. Gray, D. Green, S. Grünendahl, O. Gutsche, J. Hanlon, D. Hare, R.M. Harris, J. Hirschauer, B. Hooberman, S. Jindariani, M. Johnson,U. Joshi, B. Klima, B. Kreis, S. Kwan†,J. Linacre, D. Lincoln, R. Lipton, T. Liu,R. Lopes De Sá, J. Lykken,K. Maeshima, J.M. Marraffino, V.I. Martinez Outschoorn, S. Maruyama,D. Mason, P. McBride, P. Merkel,K. Mishra, S. Mrenna, S. Nahn, C. Newman-Holmes, V. O’Dell,O. Prokofyev, E. Sexton-Kennedy, A. Soha,W.J. Spalding, L. Spiegel, L. Taylor,S. Tkaczyk, N.V. Tran,L. Uplegger, E.W. Vaandering, R. Vidal,A. Whitbeck, J. Whitmore, F. Yang

FermiNationalAcceleratorLaboratory,Batavia,USA

D. Acosta, P. Avery, P. Bortignon, D. Bourilkov, M. Carver, D. Curry,S. Das, M. De Gruttola,

G.P. Di Giovanni, R.D. Field, M. Fisher, I.K. Furic, J. Hugon, J. Konigsberg,A. Korytov, T. Kypreos, J.F. Low, K. Matchev,H. Mei, P. Milenovic55, G. Mitselmakher,L. Muniz, A. Rinkevicius, L. Shchutska, M. Snowball, D. Sperka,J. Yelton, M. Zakaria

UniversityofFlorida,Gainesville,USA

S. Hewamanage, S. Linn, P. Markowitz, G. Martinez, J.L. Rodriguez FloridaInternationalUniversity,Miami,USA

J.R. Adams, T. Adams,A. Askew,J. Bochenek, B. Diamond, J. Haas, S. Hagopian,V. Hagopian, K.F. Johnson, H. Prosper,V. Veeraraghavan, M. Weinberg

FloridaStateUniversity,Tallahassee,USA

M.M. Baarmand,M. Hohlmann, H. Kalakhety, F. Yumiceva FloridaInstituteofTechnology,Melbourne,USA

M.R. Adams,L. Apanasevich, D. Berry, R.R. Betts, I. Bucinskaite,R. Cavanaugh, O. Evdokimov, L. Gauthier, C.E. Gerber,D.J. Hofman,P. Kurt, C. O’Brien,I.D. Sandoval Gonzalez, C. Silkworth,P. Turner, N. Varelas UniversityofIllinoisatChicago(UIC),Chicago,USA

B. Bilki56,W. Clarida, K. Dilsiz, M. Haytmyradov, J.-P. Merlo, H. Mermerkaya57,A. Mestvirishvili, A. Moeller, J. Nachtman, H. Ogul, Y. Onel,F. Ozok49, A. Penzo,R. Rahmat, S. Sen, P. Tan, E. Tiras, J. Wetzel,K. Yi

TheUniversityofIowa,IowaCity,USA

I. Anderson,B.A. Barnett, B. Blumenfeld, S. Bolognesi, D. Fehling, A.V. Gritsan, P. Maksimovic,C. Martin, M. Swartz,M. Xiao

JohnsHopkinsUniversity,Baltimore,USA

P. Baringer,A. Bean,G. Benelli, C. Bruner, J. Gray, R.P. Kenny III, D. Majumder, M. Malek,M. Murray, D. Noonan, S. Sanders,J. Sekaric, R. Stringer, Q. Wang,J.S. Wood

TheUniversityofKansas,Lawrence,USA

I. Chakaberia,A. Ivanov, K. Kaadze,S. Khalil, M. Makouski,Y. Maravin, L.K. Saini, N. Skhirtladze, I. Svintradze

KansasStateUniversity,Manhattan,USA

J. Gronberg,D. Lange, F. Rebassoo,D. Wright LawrenceLivermoreNationalLaboratory,Livermore,USA

A. Baden, A. Belloni,B. Calvert, S.C. Eno, J.A. Gomez, N.J. Hadley, S. Jabeen, R.G. Kellogg,T. Kolberg, Y. Lu, A.C. Mignerey, K. Pedro, A. Skuja, M.B. Tonjes,S.C. Tonwar

UniversityofMaryland,CollegePark,USA

A. Apyan,R. Barbieri, K. Bierwagen, W. Busza, I.A. Cali,L. Di Matteo, G. Gomez Ceballos, M. Goncharov, D. Gulhan, M. Klute,Y.S. Lai, Y.-J. Lee,A. Levin, P.D. Luckey, C. Paus,D. Ralph, C. Roland, G. Roland, G.S.F. Stephans, K. Sumorok, D. Velicanu,J. Veverka, B. Wyslouch,M. Yang, M. Zanetti,V. Zhukova MassachusettsInstituteofTechnology,Cambridge,USA

B. Dahmes, A. Gude, S.C. Kao, K. Klapoetke, Y. Kubota,J. Mans, S. Nourbakhsh, R. Rusack, A. Singovsky, N. Tambe, J. Turkewitz

UniversityofMinnesota,Minneapolis,USA J.G. Acosta,S. Oliveros UniversityofMississippi,Oxford,USA

E. Avdeeva, K. Bloom, S. Bose,D.R. Claes, A. Dominguez,R. Gonzalez Suarez, J. Keller,D. Knowlton, I. Kravchenko, J. Lazo-Flores, F. Meier,F. Ratnikov, G.R. Snow, M. Zvada

UniversityofNebraska-Lincoln,Lincoln,USA

J. Dolen, A. Godshalk,I. Iashvili, A. Kharchilava, A. Kumar,S. Rappoccio StateUniversityofNewYorkatBuffalo,Buffalo,USA

G. Alverson, E. Barberis, D. Baumgartel, M. Chasco, A. Massironi, D.M. Morse,D. Nash, T. Orimoto, D. Trocino, R.-J. Wang, D. Wood,J. Zhang

NortheasternUniversity,Boston,USA

K.A. Hahn, A. Kubik, N. Mucia,N. Odell, B. Pollack, A. Pozdnyakov, M. Schmitt,S. Stoynev, K. Sung, M. Velasco, S. Won

NorthwesternUniversity,Evanston,USA

A. Brinkerhoff, K.M. Chan,A. Drozdetskiy, M. Hildreth, C. Jessop,D.J. Karmgard, N. Kellams, K. Lannon, S. Lynch, N. Marinelli, Y. Musienko29, T. Pearson,M. Planer, R. Ruchti,G. Smith, N. Valls, M. Wayne, M. Wolf,A. Woodard

UniversityofNotreDame,NotreDame,USA

L. Antonelli, J. Brinson, B. Bylsma, L.S. Durkin, S. Flowers, A. Hart, C. Hill, R. Hughes,K. Kotov, T.Y. Ling, W. Luo, D. Puigh,M. Rodenburg, B.L. Winer,H. Wolfe, H.W. Wulsin

TheOhioStateUniversity,Columbus,USA

O. Driga,P. Elmer, J. Hardenbrook, P. Hebda,S.A. Koay, P. Lujan, D. Marlow,T. Medvedeva, M. Mooney, J. Olsen, P. Piroué, X. Quan, H. Saka,D. Stickland2,C. Tully, J.S. Werner, A. Zuranski

PrincetonUniversity,Princeton,USA

E. Brownson,S. Malik, H. Mendez, J.E. Ramirez Vargas UniversityofPuertoRico,Mayaguez,USA

V.E. Barnes,D. Benedetti, D. Bortoletto,M. De Mattia, L. Gutay, Z. Hu, M.K. Jha, M. Jones, K. Jung, M. Kress, N. Leonardo,D.H. Miller, N. Neumeister, F. Primavera, B.C. Radburn-Smith, X. Shi, I. Shipsey, D. Silvers, A. Svyatkovskiy, F. Wang, W. Xie, L. Xu, J. Zablocki

N. Parashar,J. Stupak PurdueUniversityCalumet,Hammond,USA

A. Adair,B. Akgun, K.M. Ecklund, F.J.M. Geurts, W. Li, B. Michlin, B.P. Padley,R. Redjimi, J. Roberts, J. Zabel

RiceUniversity,Houston,USA

B. Betchart,A. Bodek, P. de Barbaro, R. Demina, Y. Eshaq,T. Ferbel, M. Galanti, A. Garcia-Bellido,

P. Goldenzweig,J. Han, A. Harel, O. Hindrichs, A. Khukhunaishvili, S. Korjenevski, G. Petrillo,M. Verzetti, D. Vishnevskiy

UniversityofRochester,Rochester,USA

R. Ciesielski,L. Demortier, K. Goulianos, C. Mesropian TheRockefellerUniversity,NewYork,USA

S. Arora,A. Barker, J.P. Chou, C. Contreras-Campana, E. Contreras-Campana,D. Duggan, D. Ferencek, Y. Gershtein,R. Gray, E. Halkiadakis, D. Hidas,S. Kaplan, A. Lath,S. Panwalkar, M. Park, S. Salur, S. Schnetzer, D. Sheffield, S. Somalwar, R. Stone,S. Thomas, P. Thomassen,M. Walker

Rutgers,TheStateUniversityofNewJersey,Piscataway,USA K. Rose, S. Spanier,A. York

UniversityofTennessee,Knoxville,USA

O. Bouhali58, A. Castaneda Hernandez, S. Dildick,R. Eusebi,W. Flanagan, J. Gilmore, T. Kamon59, V. Khotilovich,V. Krutelyov, R. Montalvo, I. Osipenkov,Y. Pakhotin, R. Patel, A. Perloff,J. Roe, A. Rose, A. Safonov,I. Suarez,A. Tatarinov, K.A. Ulmer

TexasA&MUniversity,CollegeStation,USA

N. Akchurin, C. Cowden,J. Damgov, C. Dragoiu, P.R. Dudero, J. Faulkner, K. Kovitanggoon, S. Kunori, S.W. Lee, T. Libeiro, I. Volobouev

TexasTechUniversity,Lubbock,USA

E. Appelt,A.G. Delannoy, S. Greene,A. Gurrola, W. Johns, C. Maguire, Y. Mao,A. Melo, M. Sharma, P. Sheldon,B. Snook, S. Tuo, J. Velkovska

VanderbiltUniversity,Nashville,USA

M.W. Arenton, S. Boutle,B. Cox,B. Francis, J. Goodell, R. Hirosky, A. Ledovskoy, H. Li,C. Lin, C. Neu, E. Wolfe,J. Wood

UniversityofVirginia,Charlottesville,USA

C. Clarke, R. Harr, P.E. Karchin, C. Kottachchi Kankanamge Don,P. Lamichhane, J. Sturdy WayneStateUniversity,Detroit,USA

D.A. Belknap,D. Carlsmith, M. Cepeda, S. Dasu, L. Dodd, S. Duric, E. Friis,R. Hall-Wilton, M. Herndon, A. Hervé,P. Klabbers, A. Lanaro, C. Lazaridis, A. Levine, R. Loveless,A. Mohapatra, I. Ojalvo, T. Perry, G.A. Pierro,G. Polese,I. Ross, T. Sarangi, A. Savin,W.H. Smith, D. Taylor,C. Vuosalo, N. Woods UniversityofWisconsin,Madison,USA

E-mailaddress:cms-publication-committee-chair@cern.ch(G. Hamel de Monchenault).

† _Deceased.

1 _{AlsoatViennaUniversityofTechnology,Vienna,Austria.}