6533b82bfe1ef96bd128cddc

RESEARCH PRODUCT

Search for flavor changing neutral currents in decays of top quarks

G. SajotM. S. RangelHorst SeveriniHakjae LeeRichard B. LiptonJ. M. HauptmanCecilia Elena GerberG. C. BlazeyB. SanghiKristian HarderD. CuttsR. YamadaGreg LandsbergK. HernerKetino KaadzeJean-francois GrivazK. SoustruznikSergio F NovaesM. PangilinanM. NaimuddinP. JonssonA. PalThomas HebbekerW. C. YangL. S. VertogradovAaron DominguezI. Ripp-baudotA. MeyerRobert HiroskyD. MenezesSuneel DuttS. J. De JongJ. OrdunaG. GintherG. GintherMaxim PerfilovM. P. SandersYurii MaravinVladimir GavrilovGordon WattsV. SirotenkoJianming QianDmitri TsybychevR. L. MccarthyY. W. LiuR. BernhardW. E. CooperDaniel R ClaesP. VerdierP. VerdierA. AltonMeng WangM. A. Carrasco-lizarragaJ. ClutterPhillip GutierrezS. UvarovB. QuinnJ. JoshiQ. Z. LiA. JusteL. Welty-riegerC. SchwanenbergerAlice BeanR. Van KootenF. MiconiOleg BrandtJ. Martínez-ortegaV. A. KuzminSergey BurdinG. GutierrezJ. A. ParsonsPedro G MercadanteBjoern PenningMarkus WobischJ. OstaW. M. LeeA. A. ShchukinG. BernardiEmanuela BarberisP. NeustroevArnaud DuperrinM. D. CorcoranY. N. KharzheevJean-arcady MeyerL. BagbyVolker BuescherA. EvdokimovFrank FiedlerA. JonckheereT. GadfortS. P. DenisovVipin BhatnagarV. SimakSabine LammersC. Belanger-champagneJong-sung YuE. KajfaszS. Söldner-remboldD. EdmundsL. BellantoniR. PartridgeL. HanGuennadi BorissovV. A. BezzubovI. Heredia-de La CruzA. DubeyJ. P. NegretK. M. ChanAshok KumarD. SmirnovR. Magaña-villalbaR. Luna-garciaMark Raymond AdamsD. KarmanovW. C. FisherA. LobodenkoD. KhatidzeT. H. BurnettS. W. ChoG. ObrantGianluca PetrilloMichael HildrethKenneth BloomM. HohlfeldM. JaffréJoseph HaleyG. GrenierV. L. MalyshevMitchell WayneH. SchellmanJ. M. KohliHang YinZhenyu YeShabnam JabeenS. KulikovP. SkubicDarren PriceMichael MulhearnM. MerkinNeeti ParasharAnna GoussiouM. BuehlerStefan GrünendahlYuri GershteinZhanqiang LiuZhanqiang LiuM. CookeI. KatsanosP. D. GrannisTulika BoseG. S. MuanzaMark Richard James WilliamsPhilip BaringerGregory R SnowM. PadillaJ. SnowGraham WilsonUlrich HeintzE. E. BoosRaymond BrockK. PetersSudhir MalikIa IashviliI. RazumovM. ZielinskiS. UzunyanJ. PiperS. BanerjeeL. ZivkovicAlexander KupcoB. TuchmingChristophe RoyonHeriberto Castilla-valdezJiping ZhuJ. HaysSung Keun ParkR. BeuselinckBrajesh C ChoudharySharon HagopianE. Camacho-pérezGavin Grant HeskethFrank FilthautK. DevaughanM. EadsM. DiesburgArnulf QuadtA. K.a. MacielN. HuskeH. D. WahlElemer NagyV. V. TokmeninDaria ZieminskaThibault GuilleminA. S. ItoA. MelnitchoukTiefu ZhaoN. ParuaD. VilanovaRandy RuchtiMaria Elena PolS. Chevalier-théryU. BasslerS. W. YounD. WickeReinhard SchwienhorstJ. SekaricMichael A. StraussJ. K. KrausS. CihangirG. FaciniAmnon HarelDennis Stephen MackinRegina DeminaN. OsmanO. AtramentovA. TanasijczukP. L.m. Podesta-lermaFabrice CoudercChong-yu XuElizaveta ShabalinaR. JesikT. R. WyattP. SalcidoD. A. StoyanovaH. A. NealA. JayasingheY. A. YatsunenkoP. LebrunK. A. JohnsT. NunnemannBrad AbbottV. V. LipaevG. AlkhazovB. BaldinM. M. MeijerT. DorlandR. PiegaiaPierre PetroffLiang LiV. M. PodstavkovD. JaminGrigory SafronovS. ChakrabartiHarald FoxD. BrownViatcheslav StolinC. L. McgivernV. M. AbazovD. K. ChoT. YasudaJ. T. LinnemannD. V. BandurinL. SuterP. RubinovK. YipWendy TaylorMaiko TakahashiV. BunichevM. FortnerP. VintLev DudkoA. ChandraI. A. VasilyevFrederic DeliotCarlos AvilaS. BealeH. HegabV. PariharA. V. PopovH. E. FiskG. SavageAndrew WhiteSuyong ChoiT. ScanlonGuo-ming ChenS. KermicheMichael BegelZdenek HubacekEduardo De Moraes GregoresV. V. SharyAran Garcia-bellidoSuman Bala BeriA. CrocV. HynekGustaaf BrooijmansShih-chang LeeS. GrederPh GrisG. D. AlexeevFlera RizatdinovaG. GolovanovAvto KharchilavaJ. WarcholG. Otero Y GarzonT. HoangM. H. KirbyT. SchliephakeAlexander KhanovTodd AdamsVictor Daniel ElviraIain Alexander BertramJohn HobbsB. S. AcharyaK. J. SmithM. C. CousinouJ. BarretoD. DenisovR. D. SchambergerY. T. TsaiJ. BackusmayesMartin GrunewaldHal EvansThomas FerbelM. PrewittP. N. RatoffP. A. KasperMichael RijssenbeekLars SonnenscheinS. ZelitchT. HeadJ. BrownDavid T. JohnstonJ. LellouchL. StuttePushpalatha C BhatA.s. DyshkantY. PetersA. Sanchez-hernandezA. S. SantosL. S. AncuJ. F. BartlettR. NayyarRobert KehoeP. M. TutsMaksym TitovJiri KvitaAndrew AskewV. E. BazterraW. GeistMarc BesanconD. GerbaudoV. N. EvdokimovM. RominskyB. HoeneisenChristopher George TullyLee SawyerMilos LokajicekPatrick SlatteryN. ProkopenkoF. GuoA. DasP. SvoiskyW. GengW. GengM. DemarteauR. IllingworthN. KhalatyanS. YacoobDarien WoodGeorge AlversonD. HedinC. P. BuszelloYuehong XieS. BlessingScott SnyderE. De La Cruz-bureloKonstantinos PetridisY. EnariAndrew BrandtR. K. ShivpuriKirti RanjanGavin DaviesCarsten HenselR. Lopes De SaS. M. LiettiMarco VerzocchiTheodoros ChristoudiasY. ScheglovKaushik DeA. PatwaMarcia BegalliMeenakshi NarainJan StarkHenry LubattiP. RenkelS. SchlobohmH. GreenleeD. M. StromA. BrossNikos VarelasBing ZhouSerban ProtopopescuM. AokiAndy HaasJ. K. LimB. ÅSmanA. P. HeinsonM. A. PleierDaniel DugganS. DesaiPetr VokacB. CalpasD. ChakrabortyGilvan AlvesDon LincolnErich VarnesM. VesterinenR. MadarW. M. Van LeeuwenB. C.k. CaseyP. PolozovMarvin JohnsonA. L. LyonA. V. KozelovF. BadaudZeno Dixon GreenwoodX. B. BuN. K. MondalD. BolineH. T. DiehlT. A. BoltonA. BoehnleinJ. EllisonS. FuessT. KurcaMarc WeberM. ArovAnthony RossAlexander GrohsjeanLev Uvarov

subject

CouplingPhysicsQuarkNuclear and High Energy PhysicsTop quarkParticle physicsLuminosity (scattering theory)010308 nuclear & particles physicsBranching fractionFlavor-changing neutral currentHigh Energy Physics::PhenomenologyTevatronFOS: Physical sciences01 natural sciencesHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)0103 physical sciencesExperimental High Energy PhysicsComputingMethodologies_DOCUMENTANDTEXTPROCESSING[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]High Energy Physics::Experiment010306 general physicsSign (mathematics)

description

We present a search for flavor changing neutral currents in decays of top quarks. The analysis is based on a search for ttbar -> l'null + jets (l, l' = e, mu) final states using 4.1 fb^-1 of integrated luminosity of ppbar collisions at sqrt(s) = 1.96 TeV. We extract limits on the branching ratio B(t -> Zq) (q = u, c quarks), assuming anomalous tuZ or tcZ couplings. We do not observe any sign of such anomalous coupling and set a limit of B < 3.2% at 95% C.L.

yearjournalcountryeditionlanguage
2011-03-23
10.1016/j.physletb.2011.06.014https://hal.in2p3.fr/in2p3-00579721