6533b855fe1ef96bd12b1133

RESEARCH PRODUCT

Model-independent measurement of t-channel single top quark production in pp¯ collisions at s=1.96 TeV

G. SajotM. S. RangelAnna GoussiouB. SanghiJ. F. BartlettR. NayyarHorst SeveriniD. EdmundsRobert KehoeW. C. YangMaxim PerfilovY. T. TsaiR. K. ShivpuriA. S. SantosL. S. AncuP. RenkelS. SchlobohmH. GreenleeD. M. StromG. S. MuanzaGregory R SnowA. BrossHakjae LeeL. Welty-riegerSerban ProtopopescuM. AokiAndy HaasZhenyu YeGavin DaviesPedro G MercadanteR. Lopes De SaL. BellantoniWendy TaylorL. S. VertogradovV. BunichevYuri GershteinN. K. MondalD. BolineH. T. DiehlS. M. LiettiY. ScheglovKaushik DeP. D. GrannisJ. OrdunaA. JonckheereK. DevaughanAndrew WhiteA. BoehnleinE. Camacho-pérezKristian HarderRobert HiroskyDavid CuttsR. IllingworthArnulf QuadtDmitri TsybychevR. L. MccarthyR. BernhardW. E. CooperHang YinReinhard SchwienhorstU. BasslerSergey BurdinDaniel R ClaesS. P. DenisovA. LobodenkoElemer NagyJ. EllisonS. FuessT. KurcaJan StarkHenry LubattiG. GutierrezA. Sanchez-hernandezArnaud DuperrinEmanuela BarberisMarc WeberD. N. BrownDaria ZieminskaMichael MulhearnM. C. CousinouSergio F NovaesGreg LandsbergSw. BanerjeeK. HernerRegina DeminaHeriberto Castilla-valdezJong-sung YuG. Otero Y GarzonYuji EnariJohn HobbsD. WickeRon LiptonB. S. AcharyaT. R. WyattJ. BarretoMarco VerzocchiAndrew AskewS. Chevalier-théryDennis Stephen MackinM. ArovW. M. Van LeeuwenD. SmirnovAndreas Werner JungDavid T. JohnstonG. AlkhazovR. Magaña-villalbaS. W. ChoG. ObrantN. OsmanGianluca PetrilloAshok KumarElizaveta ShabalinaShabnam JabeenAnthony RossK. SoustruznikF. MiconiOleg BrandtT. NunnemannD. V. BandurinS. Söldner-remboldB. BaldinM. P. SandersAlexander GrohsjeanYueh-feng LiuA. PatwaChristophe RoyonSuyong ChoiJ. Martínez-ortegaBjoern PenningD. JaminGrigory SafronovJ. SnowS. ChakrabartiP. VerdierK. PetersRaymond BrockSung Keun ParkMarcia BegalliH. D. WahlG. C. BlazeyMarkus WobischD. KarmanovLev UvarovYurii MaravinVladimir GavrilovC. Belanger-champagneI. Ripp-baudotA. MeyerP. RubinovV. A. KuzminA. DubeyTulika BoseG. GrenierD. KhatidzeP. A. KasperR. BeuselinckF. BadaudGordon WattsG. GolovanovR. YamadaNikos VarelasSudhir MalikIa IashviliMeenakshi NarainM. CookeT. SchliephakeH. E. FiskVictor Daniel ElviraV. E. BazterraBing ZhouV. SirotenkoGraham WilsonN. TriplettJean-francois GrivazZeno Dixon GreenwoodBrajesh C ChoudharyA. EvdokimovM. NaimuddinM. M. MeijerP. JonssonA. PalJ. BackusmayesMartin GrunewaldJ. ClutterP. N. RatoffMarc BesanconMilos LokajicekA. S. ItoA. MelnitchoukThomas HebbekerAran Garcia-bellidoM. MerkinGregorio BernardiY. PetersF. GuoMaksym TitovG. D. AlexeevFlera RizatdinovaT. YasudaPhillip GutierrezD. DenisovMary Beth AdamsPhilip BaringerAaron DominguezJ. PiperP. EllerA. DasP. SvoiskyDarien WoodO. AtramentovJ. SekaricMichael A. StraussC. P. BuszelloT. DorlandHal EvansThomas FerbelM. PrewittChong-yu XuYuehong XieLars SonnenscheinS. BlessingV. V. LipaevJ. LellouchV. M. PodstavkovJ. M. HauptmanCecilia Elena GerberN. ProkopenkoP. LebrunScott SnyderP. SkubicP. NeustroevThibault GuilleminEdouard BoosD. K. ChoM. FortnerS. CihangirA. ChandraE. De La Cruz-bureloKonstantinos PetridisG. GintherG. GintherG. GintherAndrew BrandtJianming QianJ. JoshiA. JayasingheA. CrocV. V. TokmeninFabrice CoudercS. J. De JongT. ScanlonGuo-ming ChenS. KermicheG. FaciniH. A. NealY. A. YatsunenkoViatcheslav StolinM. HohlfeldPh GrisKirti RanjanJ. T. LinnemannCarsten HenselM. H. KirbyK. YipSuman Bala BeriV. HynekCarlos AvilaS. BealeZ. LiuK. J. SmithW. M. LeeR. D. SchambergerL. StutteA.s. DyshkantH. HegabV. PariharJiri KvitaD. GerbaudoCecile DeterreTodd AdamsGuennadi BorissovI. Heredia-de La CruzW. C. FisherS. KulikovLiang LiAvto KharchilavaNeeti ParasharI. RazumovLev DudkoT. HoangPushpalatha C BhatAlexander KhanovM. ZielinskiJiping ZhuJ. HaysR. Van KootenAndrey PopovA. A. ShchukinFrank FiedlerM. D. CorcoranL. HanB. HoeneisenLee SawyerE. KajfaszM. JaffréM. DemarteauJoseph HaleyI. KatsanosM. PadillaAlexander KupcoTiefu ZhaoS. W. YounJ. K. KrausN. ParuaD. VilanovaRandy RuchtiR. JesikK. A. JohnsP. L.m. Podesta-lermaGustaaf BrooijmansBrad AbbottShih-chang LeePierre PetroffJ. WarcholZ. HubacekZ. HubacekD. ChakrabortyDon LincolnErich VarnesM. VesterinenR. MadarJ. K. LimB. ÅSmanA. P. HeinsonM. A. PleierB. C.k. CaseyChristfried FockeP. PolozovV. SimakSabine LammersJames H CochranMarvin JohnsonMitchell WayneA. L. LyonH. SchellmanJ. M. KohliA. V. KozelovStefan GrünendahlL. ZivkovicX. B. BuB. TuchmingDaniel DugganS. DesaiPetr VokacFrederic DeliotChristopher George TullyB. CalpasPatrick SlatteryT. H. BurnettGilvan AlvesUlrich HeintzFrank FilthautG. SavageN. HuskeM. DiesburgA. TanasijczukP. SalcidoD. A. StoyanovaC. L. McgivernS. UvarovMichael BegelEduardo De Moraes GregoresQ. Z. LiT. HeadB. QuinnA. JusteC. SchwanenbergerAlice BeanJ. A. ParsonsJ. OstaVolker BuescherHarald FoxL. SuterMaiko TakahashiI. A. VasilyevJ. S. BrownVipin BhatnagarR. PartridgeKenneth BloomV. L. MalyshevGavin Grant HeskethKetino KaadzeV. A. BezzubovJ. P. NegretR. Luna-garciaMichael HildrethD. MenezesDarren PriceS. UzunyanM. EadsSuneel DuttAmnon HarelA. AltonMeng WangM. A. Carrasco-lizarragaW. GengW. GengW. GengN. KhalatyanS. YacoobGeorge AlversonD. HedinY. N. KharzheevJean-arcady MeyerV. M. AbazovL. BagbyV. SharyS. GrederIain Alexander BertramMichael RijssenbeekK. M. ChanS. ZelitchV. N. EvdokimovM. RominskyM. BuehlerMark Richard James WilliamsSharon HagopianA. K.a. MacielR. Piegaia

subject

QuarkPhysicsNuclear and High Energy PhysicsTop quarkParticle physicsMuon010308 nuclear & particles physicsElectroweak interactionTevatronParticle acceleratorElectron7. Clean energy01 natural scienceslaw.inventionNuclear physicslaw0103 physical sciencesHigh Energy Physics::ExperimentFermilabNuclear Experiment010306 general physics

description

We present a model-independent measurement of $t$-channel electroweak production of single top quarks in $\ppbar$ collisions at $\sqrt{s}=1.96\;\rm TeV$. Using $5.4\;\rm fb^{-1}$ of integrated luminosity collected by the D0 detector at the Fermilab Tevatron Collider, and selecting events containing an isolated electron or muon, missing transverse energy and one or two jets originating from the fragmentation of $b$ quarks, we measure a cross section $\sigma({\ppbar}{\rargap}tqb+X) = 2.90 \pm 0.59\;\rm (stat+syst)\; pb$ for a top quark mass of $172.5\;\rm GeV$. The probability of the background to fluctuate and produce a signal as large as the one observed is $1.6\times10^{-8}$, corresponding to a significance of 5.5 standard deviations.

https://doi.org/10.1016/j.physletb.2011.10.035