6533b860fe1ef96bd12c2e31

RESEARCH PRODUCT

Search for tt¯ resonances in the lepton plus jets final state in pp¯ collisions at s=1.96TeV

V.m. AbazovB. AbbottM. AbolinsB.s. AcharyaM. AdamsT. AdamsE. AguiloS.h. AhnM. AhsanG.d. AlexeevG. AlkhazovA. AltonG. AlversonG.a. AlvesM. AnastasoaieL.s. AncuT. AndeenS. AndersonB. AndrieuM.s. AnzelcM. AokiY. ArnoudM. ArovM. ArthaudA. AskewB. ÅSmanA.c.s. Assis JesusO. AtramentovC. AvilaF. BadaudA. BadenL. BagbyB. BaldinD.v. BandurinP. BanerjeeS. BanerjeeE. BarberisA.-f. BarfussP. BargassaP. BaringerJ. BarretoJ.f. BartlettU. BasslerD. BauerS. BealeA. BeanM. BegalliM. BegelC. Belanger-champagneL. BellantoniA. BellavanceJ.a. BenitezS.b. BeriG. BernardiR. BernhardI. BertramM. BesançonR. BeuselinckV.a. BezzubovP.c. BhatV. BhatnagarC. BiscaratG. BlazeyF. BlekmanS. BlessingD. BlochK. BloomA. BoehnleinD. BolineT.a. BoltonE.e. BoosG. BorissovT. BoseA. BrandtR. BrockG. BrooijmansA. BrossD. BrownN.j. BuchananD. BuchholzM. BuehlerV. BuescherV. BunichevS. BurdinS. BurkeT.h. BurnettC.p. BuszelloJ.m. ButlerP. CalfayanS. CalvetJ. CamminW. CarvalhoB.c.k. CaseyH. Castilla-valdezS. ChakrabartiD. ChakrabortyK. ChanK.m. ChanA. ChandraF. CharlesE. CheuF. ChevallierD.k. ChoS. ChoiB. ChoudharyL. ChristofekT. ChristoudiasS. CihangirD. ClaesJ. ClutterM. CookeW.e. CooperM. CorcoranF. CoudercM.-c. CousinouS. Crépé-renaudinD. CuttsM. ĆWiokH. Da MottaA. DasG. DaviesK. DeS.j. De JongE. De La Cruz-bureloC. De Oliveira MartinsJ.d. DegenhardtF. DéliotM. DemarteauR. DeminaD. DenisovS.p. DenisovS. DesaiH.t. DiehlM. DiesburgA. DominguezH. DongL.v. DudkoL. DuflotS.r. DugadD. DugganA. DuperrinJ. DyerA. DyshkantM. EadsD. EdmundsJ. EllisonV.d. ElviraY. EnariS. EnoP. ErmolovH. EvansA. EvdokimovV.n. EvdokimovA.v. FerapontovT. FerbelF. FiedlerF. FilthautW. FisherH.e. FiskM. FortnerH. FoxS. FuS. FuessT. GadfortC.f. GaleaE. GallasC. GarciaA. Garcia-bellidoV. GavrilovP. GayW. GeistD. GeléC.e. GerberY. GershteinD. GillbergG. GintherN. GollubB. GómezA. GoussiouP.d. GrannisH. GreenleeZ.d. GreenwoodE.m. GregoresG. GrenierPh. GrisJ.-f. GrivazA. GrohsjeanS. GrünendahlM.w. GrünewaldF. GuoJ. GuoG. GutierrezP. GutierrezA. HaasN.j. HadleyP. HaefnerS. HagopianJ. HaleyI. HallR.e. HallL. HanK. HarderA. HarelJ.m. HauptmanR. HauserJ. HaysT. HebbekerD. HedinJ.g. HegemanA.p. HeinsonU. HeintzC. HenselK. HernerG. HeskethM.d. HildrethR. HiroskyJ.d. HobbsB. HoeneisenH. HoethM. HohlfeldS.j. HongS. HossainP. HoubenY. HuZ. HubacekV. HynekI. IashviliR. IllingworthA.s. ItoS. JabeenM. JaffréS. JainK. JakobsC. JarvisR. JesikK. JohnsC. JohnsonM. JohnsonA. JonckheereP. JonssonA. JusteE. KajfaszJ.m. KalkD. KarmanovP.a. KasperI. KatsanosD. KauKaushik DeR. KehoeS. KermicheN. KhalatyanA. KhanovA. KharchilavaY.m. KharzheevD. KhatidzeT.j. KimM.h. KirbyM. KirschB. KlimaJ.m. KohliJ.-p. KonrathA.v. KozelovJ. KrausD. KropT. KuhlA. KumarA. KupcoT. KurčaV.a. KuzminJ. KvitaF. LacroixD. LamS. LammersG. LandsbergP. LebrunW.m. LeeA. LeflatJ. LellouchJ. LevequeJ. LiL. LiQ.z. LiS.m. LiettiJ.g.r. LimaD. LincolnJ. LinnemannV.v. LipaevR. LiptonY. LiuZ. LiuA. LobodenkoM. LokajicekP. LoveH.j. LubattiR. LunaA.l. LyonA.k.a. MacielD. MackinR.j. MadarasP. MättigC. MagassA. MagerkurthP.k. MalH.b. MalbouissonS. MalikV.l. MalyshevH.s. MaoY. MaravinB. MartinR. MccarthyA. MelnitchoukL. MendozaP.g. MercadanteM. MerkinK.w. MerrittA. MeyerJ. MeyerT. MilletJ. MitrevskiR.k. MommsenN.k. MondalR.w. MooreT. MoulikG.s. MuanzaM. MulhearnO. MundalL. MundimE. NagyM. NaimuddinM. NarainN.a. NaumannH.a. NealJ.p. NegretP. NeustroevH. NilsenH. NogimaS.f. NovaesT. NunnemannV. O'dellD.c. O'neilG. ObrantC. OchandoD. OnoprienkoN. OshimaN. OsmanJ. OstaR. OtecG.j. Otero Y GarzónM. OwenP. PadleyM. PangilinanN. ParasharS.-j. ParkS.k. ParkJ. ParsonsR. PartridgeN. ParuaA. PatwaG. PawloskiB. PenningM. PerfilovK. PetersY. PetersP. PétroffM. PetteniR. PiegaiaJ. PiperM.-a. PleierP.l.m. Podesta-lermaV.m. PodstavkovY. PogorelovM.-e. PolP. PolozovB.g. PopeA.v. PopovC. PotterW.l. Prado Da SilvaH.b. ProsperS. ProtopopescuJ. QianA. QuadtB. QuinnA. RakitineM.s. RangelK. RanjanP.n. RatoffP. RenkelS. ReucroftP. RichJ. RiegerM. RijssenbeekI. Ripp-baudotF. RizatdinovaS. RobinsonR.f. RodriguesM. RominskyC. RoyonP. RubinovR. RuchtiG. SafronovG. SajotA. Sánchez-hernándezM.p. SandersB. SanghiA. SantoroG. SavageL. SawyerT. ScanlonD. SchaileR.d. SchambergerY. ScheglovH. SchellmanT. SchliephakeC. SchwanenbergerA. SchwartzmanR. SchwienhorstJ. SekaricH. SeveriniE. ShabalinaM. ShamimV. SharyA.a. ShchukinR.k. ShivpuriV. SiccardiV. SimakV. SirotenkoP. SkubicP. SlatteryD. SmirnovG.r. SnowJ. SnowS. SnyderS. Söldner-remboldL. SonnenscheinA. SopczakM. SosebeeK. SoustruznikB. SpurlockJ. StarkJ. SteeleV. StolinD.a. StoyanovaJ. StrandbergS. StrandbergM.a. StrangE. StraussM. StraussR. StröhmerD. StromL. StutteS. SumowidagdoP. SvoiskyA. SznajderP. TamburelloA. TanasijczukW. TaylorJ. TempleB. TillerF. TissandierM. TitovV.v. TokmeninT. TooleI. TorchianiT. TrefzgerD. TsybychevB. TuchmingC. TullyP.m. TutsR. UnalanL. UvarovS. UvarovS. UzunyanB. VachonP.j. Van Den BergR. Van KootenW.m. Van LeeuwenN. VarelasE.w. VarnesI.a. VasilyevM. VaupelP. VerdierL.s. VertogradovM. VerzocchiF. Villeneuve-seguierP. VintP. VokacE. Von ToerneM. VoutilainenR. WagnerH.d. WahlL. WangM.h.l.s. WangJ. WarcholG. WattsM. WayneG. WeberM. WeberL. Welty-riegerA. WengerN. WermesM. WetsteinA. WhiteD. WickeG.w. WilsonS.j. WimpennyM. WobischD.r. WoodT.r. WyattY. XieS. YacoobR. YamadaM. YanT. YasudaY.a. YatsunenkoK. YipH.d. YooS.w. YounJ. YuC. ZeitnitzT. ZhaoB. ZhouJ. ZhuM. ZielinskiD. ZieminskaA. ZieminskiL. ZivkovicV. ZutshiE.g. Zverev

subject

PhysicsNuclear and High Energy PhysicsParticle physicsTop quark010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyHadronTopcolorTevatronTechnicolor7. Clean energy01 natural sciencesNuclear physics0103 physical sciencesHigh Energy Physics::ExperimentInvariant mass010306 general physicsLeptonBoson

description

We present a search for a narrow-width heavy resonance decaying into top quark pairs X->ttbar in ppbar collisions at sqrt{s}=1.96TeV using approximately 0.9fb^-1 of data collected with the D0 detector at the Fermilab Tevatron Collider. This analysis considers ttbar candidate events in the lepton plus jets channel with at least one identified b jet and uses the ttbar invariant mass distribution to search for evidence of resonant production. We find no evidence for a narrow resonance X decaying to ttbar. Therefore, we set upper limits on sigma*B(X->ttbar) for different hypothesized resonance masses using a Bayesian approach. For a Topcolor-assisted technicolor model, the existence of a leptophobic Z' boson with mass M_Z'<700GeV and width Gamma_Z'=0.012 M_Z' can be excluded at the 95% C.L.

https://doi.org/10.1016/j.physletb.2008.08.027