6533b872fe1ef96bd12d2f5f

RESEARCH PRODUCT

First measurement of the forward-backward charge asymmetry in top quark pair production

M. EadsS. P. DenisovSung Keun ParkMichael MulhearnF. TissandierM. P. SandersJeroen HegemanAndrew WhiteM. H.g. SouzaO. AtramentovD. KropM. FordJun GuoQ. Z. LiG. AlkhazovD. V. BandurinM. ĆWiokWendy TaylorV. BunichevS. J. ParkA. BellavanceR. OtecK. W. MerrittKee ChanRoger MooreC. De Oliveira MartinsP. N. RatoffSergio F NovaesM. NaimuddinHyun-chul KimV. M. PodstavkovM. H. KirbyP. BanerjeeRobert KehoeA. F. BarfussStephen WimpennyYurii MaravinVladimir GavrilovV. A. BezzubovJ. P. NegretV. SiccardiJ. A. ParsonsJ. OstaAndrei NomerotskiGordon WattsM. YanMartin GrunewaldV. SirotenkoJohn HobbsS. BurkeRupinder KaurM. FortnerP. M. TutsMaksym TitovJ. P. KonrathPedro G MercadantePhillip GutierrezA. DasD. C. Oa'neilM. SosebeeJ. BarretoA. MagerkurthA. ZatserklyaniyW. M. Van LeeuwenP. HaefnerI. TorchianiH. DongB. C.k. CaseyRaimund StröhmerP. SvoiskyV. SimakD. BuchholzMichael HildrethMilos LokajicekA. BrossPh GrisP. HoubenM. KopalM. BuehlerJonas StrandbergF. GuoD. KauFreya BlekmanS. HossainP. PadleyR. F. RodriguesTiefu ZhaoG. ObrantA. JonckheereS. KapplerP. PolozovTae Jeong KimRobert HiroskyA. M. KalininY. W. LiuT. KuhlM. JaffréDarien WoodChristophe RoyonP. VerdierShabnam JabeenI. Ripp-baudotNicholas John HadleyD. BauerMitchell WayneI. HallM. MerkinA. LobodenkoS. UzunyanH. SchellmanJ. M. KohliC. P. BuszelloH. D. WahlF. BadaudP. TamburelloB. PenningAnna GoussiouN. OshimaS. BlessingW. M. LeeStefan GrünendahlJovan MitrevskiAlexander KupcoM. C. CousinouA. WengerA. WengerBrad AbbottC. Belanger-champagneSharon HagopianG. GutierrezMarvin JohnsonN. ParuaRandy RuchtiDaniel BlochDaria ZieminskaMossadek TalbyM. BegalliB. GómezS. J. De JongScott SnyderE. GalyaevC. AyAndrew BrandtL. ZivkovicRaymond BrockBoaz KlimaI. KatsanosR. BeuselinckHarrison ProsperKirti RanjanY. XieAmnon HarelR. D. SchambergerL. DuflotA. V. KozelovChristophe OchandoPierre PetroffA. V. FerapontovJ. SekaricShashikant DugadA. Sanchez-hernandezS. CihangirD. A. StoyanovaFabrice CoudercR. Van KootenM. PetteniT. YasudaV. ZutshiJ. M. KalkV. BuescherM. CookeA. K.a. MacielKarl JakobsW. L. Prado Da SilvaKaushik DeAaron DominguezCarsten HenselM. D. CorcoranC. JarvisAriel SchwartzmanM. PangilinanT. R. WyattHeriberto Castilla-valdezJ. DyerS. ChakrabartiA. C.s. Assis JesusH. HoethPeter LoveGuennadi BorissovGregory R SnowP. H. KasperLiang LiPushpalatha C BhatA. MeyerL. HanL. S. VertogradovA. ZieminskiLev DudkoD. SmirnovH. NilsenR. G. WagnerB. SpurlockHwi Dong YooZdenek HubacekM. RominskyR. J. MadarasReiner HauserJ. R. KalkW. GeistN. KhalatyanS. YacoobL. ChristofekZeno Dixon GreenwoodY. ArnoudDeidre BrownR. BernhardM. A. StrangRobert HarringtonA. MendesP. LewisJ. SnowK. PetersDmitri TsybychevR. L. MccarthyS. FuDorothee SchaileW. C. FisherAndrew AskewBrigitte VachonM. KirschDaniel R ClaesYann CoadouMarco VerzocchiC. MagassTheodoros ChristoudiasE. G. ZverevF. LehnerB. HoeneisenNikos VarelasA. A. ShchukinA. ChandraF. ChevallierBing ZhouLee SawyerLuis MendozaR. K. ShivpuriP.f. ErmolovGeorge AlversonErnest AguiloS. DesaiPetr VokacMikko VoutilainenMikko VoutilainenM. HohlfeldArnaud DuperrinEmanuela BarberisKazunori HanagakiP. SkubicV. M. KorablevCristina GaleaJong-sung YuAlexander LeflatA. PatwaMark OwenDenis GeléJ. F. BartlettN. M. CasonT. NunnemannB. BaldinGavin DaviesS. BealeD. HedinFrank FiedlerE. KajfaszA. P. HeinsonAshok KumarPhilippe CalfayanM. AbolinsR. PiegaiaF. Villeneuve-seguierV. V. SharyS. J. HongS. M. LiettiP. K. MalNeeti ParasharG. S. MuanzaMichael BegelMansoora ShamimNorbert WermesMeenakshi NarainJ. HaleyEduardo De Moraes GregoresS. LammersY. ScheglovKaushik DeAdam L. LyonF. CharlesG. HeskethAvto KharchilavaG. SavageV. M. AbazovElizabeth GallasAlexander KhanovS. Söldner-remboldD. LamGilvan AlvesP. HanssonJ. D. DegenhardtN. K. MondalP. SchieferdeckerTulika BoseJan StarkM. AnastasoaieM. WetsteinP. J. Van Den BergAndre SopczakJessica LevêqueMarc BesanconJ. TempleH. T. DiehlT. A. BoltonB. AndrieuElliott CheuT. SchliephakeY. PogorelovM. DemarteauBoris TuchmingIain Alexander BertramHenry LubattiM. ZielinskiJ. CamminP. RichJ. HaysArnulf QuadtArnulf QuadtR. E. HallA. AltonA. AltonP. NeustroevH. Da MottaVictor Daniel ElviraJ. EllisonCarmen GarcíaM. AhsanMaxim PerfilovC. PotterLuiz MundimSa. JainS. FuessD. GillbergBrian Thomas MartinElemer NagyT. KurcaA. S. ItoA. MelnitchoukR. JesikK. A. JohnsMarc WeberHelio NogimaMichael RijssenbeekThomas TrefzgerV. HynekM. H.l.s. WangSuyong ChoiA. RakitineD. WickeDennis Stephen MackinV. V. LipaevJ. LellouchD. BolineT. GadfortLimin WangMarc-andre PleierC. BiscaratL. LoboP. VintM. ArovJean-arcady MeyerJean-arcady MeyerL. BagbyL. S. AncuG. D. AlexeevFlera RizatdinovaA. V. PopovAlexander GrohsjeanGustaaf BrooijmansL. BellantoniHelena MalbouissonK. M. ChanChristian ZeitnitzLev UvarovB. ÅSmanV. N. EvdokimovDhiman ChakrabortyJ. WarcholMichael A. StraussP. RenkelJ. N. ButlerP. D. GrannisV. Oa'dellJ. SteeleP. LebrunT. MilletP. L.m. Podesta-lermaP. L.m. Podesta-lermaG. W. WilsonFrederic DeliotChristopher George TullyY. M. KharzheevH. GreenleePatrick SlatteryD. K. ChoT. ScanlonGregorio BernardiD. DenisovD. M. StromS. KermicheS. StrandbergSuman Bala BeriT. H. BurnettJ. M. HeinmillerHal EvansThomas FerbelLars SonnenscheinA. JusteTodd AdamsSerban ProtopopescuD. DugganJ. A. BenitezZ. LiuMark Raymond AdamsD. KarmanovR. K. MommsenAndy HaasD. EdmundsUlrich HeintzSudhir MalikIa IashviliBrajesh C ChoudharyG. WeberFrank FilthautM. DiesburgAndre SznajderYuri GershteinDon LincolnA. TanasijczukY. A. YatsunenkoP. MättigErich VarnesViatcheslav StolinJ. MolinaCarlos AvilaR. IllingworthS. SumowidagdoSabine Crépé-renaudinReinhard SchwienhorstFlorent LacroixYvonne PetersA. EvdokimovPhilip BaringerJ. PiperV. V. TokmeninW. E. CooperS. BanerjeeB. G. PopeCalvin A. JohnsonBobby Samir AcharyaH. A. NealJ. T. LinnemannO. MundalElizaveta ShabalinaK. YipTimothy AndeenR. UnalanL. StutteGregory J PawloskiA.s. DyshkantJiri KvitaB. TillerS. W. YounE. Von ToerneMarkus WobischG. GrenierN. A. NaumannS. ReucroftD. KäferM. ArthaudVipin BhatnagarE. De La Cruz-bureloR. PartridgeChristian AutermannK. HernerD. OnoprienkoKenneth BloomShuichi KunoriV. L. MalyshevH. S. MaoMaria Elena PolJ. M. HauptmanCecilia Elena GerberG. GintherJianming QianS. AndersonHarald FoxM. VaupelI. A. VasilyevT. TooleLi JingyuanS. UvarovA. BoehnleinB. QuinnC. SchwanenbergerH. E. FiskE. StraussAran Garcia-bellidoU. BasslerS. RobinsonRegina DeminaSamuel CalvetY. EnariT. MoulikAlberto SantoroJ. G.r. LimaGrigory SafronovP. RubinovKristian HarderD. CuttsWagner CarvalhoGreg LandsbergPedrame BargassaK. SoustruznikN. J. BuchananA. BadenG. C. BlazeyR. YamadaJean-francois GrivazS. H. AhnP. JonssonThomas HebbekerD. KhatidzeM. MuldersG. SajotY. HuM. S. RangelM. S. AnzelcSarah Catherine EnoHorst SeveriniG. J. Otero Y GarzónA. BeanJunjie ZhuN. GollubRichard B. LiptonSergey BurdinSergey Burdin

subject

Top quarkParticle physicsmedia_common.quotation_subjectTevatronGeneral Physics and AstronomyFOS: Physical sciences01 natural sciencesAsymmetryHigh Energy Physics - ExperimentNuclear physicsParticle decayHigh Energy Physics - Experiment (hep-ex)0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Fermilab010306 general physicsmedia_commonPhysics010308 nuclear & particles physics12.38.Qk 12.60.-i 13.85.-t 13.87.CeHigh Energy Physics::PhenomenologyD0 experimentPair productionPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentLepton

description

We present the first measurement of the integrated forward-backward charge asymmetry in top-antitop quark pair (ttbar) production in proton-antiproton collisions in the lepton plus jets final state. Using a b-jet tagging algorithm and kinematic reconstruction assuming ttbar+X production and decay, a sample of 0.9fb-1 of data, collected by the D0 experiment at the Fermilab Tevatron Collider, is used to measure the asymmetry for different jet multiplicities. The result is also used to set upper limits on ttbar+X production via a Z' resonance.

10.1103/physrevlett.100.142002http://arxiv.org/abs/0712.0851