6533b7d7fe1ef96bd12678ec

RESEARCH PRODUCT

Measurement ofσ(pp¯→Z)·Br(Z→ττ)ats=1.96  TeV

L. DuflotB. DaviesL. SonnenscheinN.v. MokhovB. ÅSmanB. ÅSmanB. ÅSmanS. GrederM. C. CousinouKristian HarderA. P. HeinsonSharon HagopianM. LynkerD. CuttsWagner CarvalhoG. S. MuanzaA. CothenetR. E. HallJ. KasperPushpalatha C BhatReiner HauserS. FuGreg LandsbergA. Sanchez-hernandezX. F. SongTerry Richard WyattAndrew WhiteD. A. WijngaardenV. ZutshiV. M. AbazovB. HoeneisenLee SawyerPedrame BargassaAndrew AskewZhengguo ZhaoBrigitte VachonD. ShpakovM. MichautV. SharyG. HeskethK. BosK. SoustruznikN. J. BuchananF. CharlesMarc BesanconJ. TempleDugan O'neilE. G. ZverevA. PatwaDenis GeléN. M. CasonT. NunnemannB. BaldinDorothee SchaileD. ChakrabortyJ. TorborgGraham WilsonH. Da MottaKarel SmolekH. DongA. LeflatSung Keun ParkL. LuekingMansoora ShamimNorbert WermesMeenakshi NarainSherry TowersM. HohlfeldDon LincolnErich VarnesP. W. BalmW. M. LeeS.a. KahnA. KharchilavaAndrei NomerotskiMichael A. StraussIain Alexander BertramS. BanerjeeAndre SopczakMichael RijssenbeekSergey KuleshovSuyong ChoiM. DemarteauCarmen GarcíaB. AndrieuJohn HobbsElliott CheuR. PiegaiaVictor Daniel ElviraC. BiscaratP. A. RapidisP. LebrunJ. BarretoA. S. ItoA. MelnitchoukD. BuchholzP. TamburelloChristos LeonidopoulosO. BoeriuVipin BhatnagarN. LahrichiR. PartridgeX. ZhangL. ChristofekD. ChapinY. KulikA. StoneTobias GollingT. ScanlonS. KermicheA. JonckheereS. DeanStephan LinnA. LobodenkoJ. N. ButlerP. D. GrannisJ. WomersleyA. BadenT. GadfortJ. M. HauptmanD. WickeCecilia Elena GerberJ. SteeleG. GintherS. W. YounJ. LazofloresV. N. EvdokimovI. Ripp-baudotI. HallJing LiJ. WittlinG. C. BlazeyY. YenA. ChandraAnna GoussiouSuman Bala BeriVivian O'dellN. OshimaDaniel BlochDaria ZieminskaChristian AutermannR. HooperR. D. SchambergerM. WobischJianming QianWendy TaylorE. Von ToerneP. DemineL. PhafV. OguriM. SosebeeV. V. LipaevV. L. MalyshevR. YamadaStephanie BeauceronD. KarmanovA. JusteJ. DyerTodd AdamsGregory R SnowH. S. MaoC. HanRoger MooreS. ChakrabartiA. KoubarovskyS. KrzywdzinskiF. Villeneuve-seguierM. P. 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VertogradovKaushik DeI. BlacklerD. K. ChoY. ArnoudJan StarkHenry LubattiG. AlkhazovP. K. MalW. E. CooperMarkus KluteYann CoadouEmmanuel BusatoJ. ZhuArnaud DuperrinV. M. KorablevJong-sung YuJonas StrandbergJonas StrandbergJonas StrandbergN. ParuaM. EadsM. JaffréAlexander KupcoRandy RuchtiSergio F NovaesYurii MaravinVladimir GavrilovGordon WattsV. SirotenkoM. CristetiuO. V. EroshinY. SongPhillip GutierrezM. A. StrangH. WeertsZ. M. WangM. BinderM. StrovinkLev DudkoC. NoedingS. SenguptaW. M. Van LeeuwenMarvin JohnsonM. WarsinskyA. V. KozelovRobert HarringtonA. MendesV. BuescherEmanuela BarberisKazunori HanagakiDongliang ZhangCris W. BarnesAshok KumarTulika BoseM. VerzocchiMichael MartensS. N. FatakiaJaebeom ParkV. M. PodstavkovM. FortnerN. W. ReayY. HuPh GrisP. Houben

subject

PhysicsNuclear and High Energy PhysicsParticle physicsMuon010308 nuclear & particles physicsBranching fractionHadronTevatron01 natural sciencesParticle identificationStandard ModelNuclear physicsParticle decay0103 physical sciencesHigh Energy Physics::Experiment010306 general physicsLepton

description

We present a measurement of the cross section for Z production times the branching fraction to tau leptons, sigma.Br(Z ->tau(+)tau(-)), in p (p) over bar collisions at root s=1.96 TeV in the channel in which one tau decays into mu nu(mu)nu(tau), and the other into hadrons+nu(tau) or e nu(e)nu(tau). The data sample corresponds to an integrated luminosity of 226 pb(-1) collected with the D0 detector at the Fermilab Tevatron collider. The final sample contains 2008 candidate events with an estimated background of 55%. From this we obtain sigma.Br(Z ->tau(+)tau(-)) = 237 +/- 15(stat)+/- 18(sys)+/- 15(lum)pb, in agreement with the standard model prediction.

yearjournalcountryeditionlanguage
2005-04-11Physical Review D
https://doi.org/10.1103/physrevd.71.072004