6533b85ffe1ef96bd12c26b8

RESEARCH PRODUCT

Direct measurement of the mass difference between top and antitop quarks

P. VerdierV. A. KuzminPushpalatha C BhatL. MundimJun GuoQ. Z. LiW. GeistY. A. YatsunenkoViatcheslav StolinD. N. BrownSergio F NovaesB. HoeneisenLee SawyerB. SanghiM. NaimuddinM. P. SandersI. Ripp-baudotA. MeyerP. RenkelJ. A. ParsonsJ. OstaYurii MaravinVladimir GavrilovF. BadaudJ. P. KonrathCarlos AvilaS. SumowidagdoS. J. De JongP. SkubicE. CarreraGordon WattsV. SirotenkoSabine Crépé-renaudinPedro G MercadanteM. KirschD. BuchholzD. LamJ. ClutterPhillip GutierrezB. SpurlockZeno Dixon GreenwoodA. A. ShchukinFrank FiedlerE. KajfaszG. S. MuanzaNikos VarelasA. HarelS. SchlobohmW. M. LeeH. GreenleeBing ZhouLuis MendozaE. E. BoosHeriberto Castilla-valdezD. M. StromA. F. BarfussM. PadillaV. A. BezzubovP. VintM. PangilinanP. NeustroevR. JesikM. DemarteauK. A. JohnsCarmen GarcíaD. EdmundsJ. P. NegretT. GadfortZhenyu YeGuennadi BorissovI. Heredia-de La CruzW. C. FisherP. RichC. ZeitnitzArnulf QuadtCristina GaleaA. BrossV. V. SharyA. V. PopovChristopher George TullyGustaaf BrooijmansAnna GoussiouR. Luna-garciaR. Luna-garciaA. ChandraM. BuehlerM. AbolinsRobert HiroskyMichael HildrethNeeti ParasharElemer NagyChristophe RoyonSerban ProtopopescuJonas StrandbergT. KuhlStephen WimpennyN. OsmanJ. BackusmayesMartin GrunewaldFrederic DeliotG. SavageAvto KharchilavaYuri GershteinYuri GershteinJ. WarcholMark Richard James WilliamsY. W. LiuH. D. WahlD. BauerDmitri TsybychevR. L. MccarthyL. Welty-riegerM. JaffréD. WickePatrick SlatteryT. NunnemannB. BaldinR. Magaña-villalbaM. AokiAndy HaasG. ObrantT. HoangM. ZielinskiJ. HaysN. K. MondalH. T. DiehlT. A. BoltonGregory R SnowMilos LokajicekAlexander KhanovT. H. BurnettY. PogorelovJovan MitrevskiU. BasslerRaimund StröhmerS. UzunyanDennis Stephen MackinV. SimakSabine LammersMansoora ShamimA. BoehnleinS. RobinsonG. SajotRegina DeminaY. HuSharon HagopianG. D. AlexeevFlera RizatdinovaF. GuoG. WeberD. ChakrabortyG. GutierrezJ. A. BenitezM. S. RangelP. HaefnerJ. EllisonZ. LiuDarien WoodP. PadleySuyong ChoiM. AhsanSa. JainS. FuessA. K.a. MacielUlrich HeintzY. XieSamuel CalvetShabnam JabeenY. EnariT. MoulikM. M. MeijerT. KurcaReinhard SchwienhorstMitchell WayneH. SchellmanJ. M. KohliMichael A. StraussDon LincolnErich VarnesChong-yu XuTiefu ZhaoS. Söldner-remboldAndre SopczakElliott CheuT. SchliephakeP. K. MalC. P. BuszelloFrank FilthautM. MerkinS. UvarovMarc WeberMarc WeberM. DiesburgVictor Daniel ElviraD. JaminGrigory SafronovS. ChakrabartiJ. K. KrausS. BlessingAlexander KupcoKarl JakobsStefan GrünendahlA. EvdokimovT. YasudaAaron DominguezP. LebrunD. SmirnovM. S. AnzelcSarah Catherine EnoHorst SeveriniScott SnyderA. TanasijczukP. L.m. Podesta-lermaP. L.m. Podesta-lermaI. KatsanosM. ArovChristophe OchandoP. RubinovJ. M. HauptmanB. GómezCecilia Elena GerberBenjamin M. MartinI. NikolaevGraham WilsonB. TuchmingD. K. ChoA. Sanchez-hernandezD. A. StoyanovaR. K. ShivpuriV. ZutshiR. PiegaiaT. ScanlonS. KermicheAlexander GrohsjeanN. ParuaJ. SekaricD. VilanovaRandy RuchtiB. QuinnD. GillbergA. JonckheereBrad AbbottG. GintherG. GintherC. L. McgivernSuman Bala BeriJianming QianJ. SnowV. HynekI. HallA. LobodenkoAndrew AskewAndrew AskewLev UvarovPhilip BaringerW. C. YangD. R. ClaesGavin DaviesPhilippe CalfayanJ. PiperJunjie ZhuK. PetersPierre PetroffRaymond BrockC. SchwanenbergerMaxim PerfilovBoaz KlimaA. S. ItoA. MelnitchoukD. MenezesA. JusteMichael BegelN. OshimaS. J. ParkSung Keun ParkEduardo De Moraes GregoresDaria ZieminskaA. RakitineS. BanerjeeTodd AdamsR. D. SchambergerAlice BeanPeter LoveDorothee SchaileR. BeuselinckRichard B. LiptonS. M. LiettiY. ScheglovKaushik DeA. V. FerapontovS. CihangirM. C. CousinouL. BellantoniHelena MalbouissonT. R. WyattMarc-andre PleierP. D. GrannisW. GengW. GengSuneel DuttV. V. LipaevJ. LellouchM. HohlfeldA. AltonA. AltonWendy TaylorJing LiGregorio BernardiD. DenisovMeng WangDavid T. JohnstonL. S. AncuV. BunichevD. BolineH. E. FiskRoger MooreR. Van KootenMaria Elena PolHelio NogimaS. FuE. StraussM. D. CorcoranKristian HarderFabrice CoudercHal EvansL. DuflotJ. K. LimV. SiccardiY. N. KharzheevAran Garcia-bellidoG. HeskethP. J. Van Den BergMarc BesanconP. MättigJean-arcady MeyerJan StarkL. BagbyThomas FerbelThomas FerbelR. OtecHenry LubattiLars SonnenscheinN. KhalatyanS. YacoobL. HanA. MagerkurthHarald FoxM. WetsteinD. CuttsR. IllingworthWagner CarvalhoB. ÅSmanB. S. AcharyaK. M. ChanMaiko TakahashiP. N. RatoffY. PetersL. S. VertogradovCalvin A. JohnsonJ. CamminI. A. VasilyevVipin BhatnagarElizaveta ShabalinaP. M. TutsMaksym TitovGeorge AlversonR. PartridgeHua-lei YinR. G. WagnerA. P. HeinsonGreg LandsbergK. HernerTimothy AndeenKenneth BloomV. L. MalyshevS. BealeD. HedinPedrame BargassaK. SoustruznikY. ArnoudR. E. HallV. M. AbazovM. A. StrangErnest AguiloS. DesaiPetr VokacR. BernhardW. E. CooperS. GrederIain Alexander BertramMikko VoutilainenMikko VoutilainenG. C. BlazeyI. TorchianiR. YamadaMichael RijssenbeekS. ZelitchAlexander LeflatArnaud DuperrinV. N. EvdokimovB. CalpasJean-francois GrivazJong-sung YuP. JonssonThomas HebbekerD. KhatidzeFlorian LacroixM. A. Carrasco-lizarragaGilvan AlvesP. SvoiskyM. ArthaudN. HuskeW. M. Van LeeuwenB. C.k. CaseyD. OnoprienkoG. Otero Y GarzonAndrew WhiteV. V. TokmeninG. FaciniH. A. NealP. PolozovJ. T. LinnemannB. TillerTae Jeong KimO. MundalK. YipS. W. YounA. DasM. SosebeeB. PenningR. UnalanL. StutteGregory J PawloskiA.s. DyshkantMarvin JohnsonMarkus WobischA. L. LyonJiri KvitaA. DubeyG. GrenierA. V. KozelovS. HossainX. B. BuJohn HobbsJ. BarretoK. DevaughanE. De La Cruz-bureloMark Raymond AdamsD. KarmanovC. Belanger-champagneAndrew BrandtL. ZivkovicSudhir MalikIa IashviliBrajesh C ChoudharyM. CookeW. L. Prado Da SilvaKirti RanjanKaushik DeCarsten HenselMarco VerzocchiTheodoros ChristoudiasE. G. ZverevG. AlkhazovA. PatwaD. V. BandurinT. DorlandMark OwenMarcia BegalliM. ĆWiokMeenakshi NarainJ. HaleyP. A. KasperA. BellavanceSergey BurdinSergey BurdinM. EadsS. P. DenisovMichael MulhearnMarc EscalierJeroen HegemanK. W. MerrittJ. F. BartlettRobert KehoeO. AtramentovO. AtramentovV. M. PodstavkovM. FortnerPh GrisP. HoubenM. H. KirbyEmanuela BarberisAshok KumarTulika BoseJ. OrdunaA. WengerV. BuescherM. RominskyLiang LiLev DudkoH. NilsenHwi Dong YooZdenek HubacekD. Duggan

subject

QuarkNuclear and High Energy PhysicsAntiparticleParticle physicsAstrophysics::High Energy Astrophysical PhenomenaTevatronFOS: Physical sciencesGeneral Physics and AstronomyElementary particle01 natural sciences7. Clean energyBottom quarkHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Fermilab010306 general physicsNuclear ExperimentPhysics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyAntimatterExperimental High Energy PhysicsComputingMethodologies_DOCUMENTANDTEXTPROCESSINGHigh Energy Physics::ExperimentLepton

description

We present a direct measurement of the mass difference between top and antitop quarks (dm) in lepton+jets top-antitop final states using the "matrix element" method. The purity of the lepton+jets sample is enhanced for top-antitop events by identifying at least one of the jet as originating from a b quark. The analyzed data correspond to 3.6 fb-1 of proton-antiproton collisions at 1.96 TeV acquired by D0 in Run II of the Fermilab Tevatron Collider. The combination of the e+jets and mu+jets channels yields dm = 0.8 +/- 1.8 (stat) +/- 0.5 (syst) GeV, which is in agreement with the standard model expectation of no mass difference.

yearjournalcountryeditionlanguage
2009-06-05
10.1103/physrevd.84.052005http://arxiv.org/abs/1106.2063