6533b7d4fe1ef96bd1261d09

RESEARCH PRODUCT

Measurement of theΛb0Lifetime in the DecayΛb0→J/ψΛ0with the D0 Detector

Michael MartensH. DongM. MerkinA. MeyerD. BuchholzF. BadaudS. N. FatakiaJaebeom ParkRaymond BrockT. H. BurnettRobert HiroskyA. M. KalininP. TamburelloV. M. PodstavkovM. FortnerN. W. ReayBoaz KlimaJovan MitrevskiG. GutierrezGilvan AlvesNikola MakovecR. BeuselinckJ. KasperL. GroerKarl JakobsY. HuT. ChristiansenH. A. NealD. MederPh GrisMarcel VreeswijkB. SpurlockZeno Dixon GreenwoodMarumi KadoAnna GoussiouAndrew WhiteA. A. MayorovP. HoubenJ. T. LinnemannK. YipN. XuanCristina GaleaP. LewisJ. SnowR. Van KootenB. ThoorisUlrich HeintzJ. DyerM. D. CorcoranChristophe ClementChristophe ClementChristophe ClementThomas TrefzgerH. JöstleinL. StutteGregory R SnowM. C. CousinouFrank FilthautM. DiesburgAndrei NomerotskiM. B. PrzybycienM. B. PrzybycienA.s. DyshkantF. CharlesJohn HobbsV. BuescherJ. BarretoS. ChakrabartiJ. BystrickyA. ZieminskiT. NunnemannB. BaldinB. DaviesL. SonnenscheinK. GounderJ. R. KalkB. ClémentO. AtramentovM. AbolinsMansoora ShamimR. J. MadarasW. M. LeeA. KharchilavaSung Keun ParkJ. HuangL. LuekingS. FuM. StrovinkC. HanKevin BlackD. MihalceaC. De Oliveira MartinsP. N. RatoffP. M. TutsJonas StrandbergJonas StrandbergJonas StrandbergU. BasslerA. LeflatPierre-antoine DelsartR. A. SidwellAndre SopczakSergey KuleshovB. AndrieuN. K. MondalP. SchieferdeckerH. T. DiehlT. A. BoltonL. PhafGeorge AlversonY. PogorelovElliott CheuVictor Daniel ElviraChristos LeonidopoulosR. BernhardR. BernhardD. A. WijngaardenL. S. VertogradovSharon HagopianA. BoehnleinM. CookeEmanuela BarberisKazunori HanagakiDongliang ZhangW. L. Prado Da SilvaDugan O'neilE. G. ZverevA. PatwaDenis GeléN. M. CasonGraham WilsonA. YurkewiczH. Da MottaP.f. ErmolovG. HeskethG. SavageCris W. BarnesD. HedinRegina DeminaD. ChakrabortyN. ParuaFrederic DeliotC. NoedingJ. EllisonA. K.a. MacielD. K. ChoY. ArnoudJ. WomersleyM. AhsanSa. JainS. FuessChristopher George TullyJuan EstradaAriel SchwartzmanT. KurcaW. KahlS. E.k. MattinglyM. EadsS. KesisoglouK. BosMarc BesanconJ. TempleW. M. Van LeeuwenS. Tentindo-repondG. D. AlexeevA. S. ItoA. MelnitchoukA. CothenetV. A. BezzubovTulika BoseMarc WeberA. LounisY. M. KharzheevM. JaffréP. K. MalW. E. CooperYann CoadouJ. WittlinFlera RizatdinovaAlberto SantoroJ. G.r. LimaM. VerzocchiJ. P. NegretPatrick SlatteryR. PiegaiaR. P. SmithNorbert WermesMeenakshi NarainSherry TowersSophie Trincaz-duvoidG. J. Otero Y GarzónA. Sanchez-hernandezD. A. StoyanovaA. S. TurcotV. ZutshiPhilip BaringerS. JabeenDon LincolnS. BanerjeeM. WobischA. A. SchukinErich VarnesP. W. BalmMichael A. StraussArnaud DuperrinV. M. KorablevT. EdwardsF. Villeneuve-seguierStephanie BeauceronD. KarmanovV. V. LipaevJ. KozminskiMichael HildrethVivek JainQ. XuJ. LazofloresMarvin JohnsonD. KauAndrew AskewZhengguo ZhaoP. RubinovJ. FastPaul TelfordK. StevensonF. BorcherdingShuichi KunoriBrigitte VachonD. ShpakovR. ZitounM. WarsinskyMichael BegelJong-sung YuA. V. KozelovP. LebrunM. KopalQ. Z. LiSudhir MalikAlexander KupcoLev UvarovS. UzunyanK. J. RaniY. A. YatsunenkoA. AltonEduardo De Moraes GregoresAlexandre ZabiAlexander KhanovJ. M. HauptmanHarrison ProsperCecilia Elena GerberM. SosebeeM. BuehlerIa IashviliJean-roch VlimantRodney WalkerRandy RuchtiS. W. YounE. Von ToerneG. A. DavisBoris TuchmingP. DemineO. BoeriuY. KulikN. R. StantonA. StoneG. GintherS. DesaiD. CoppageJianming QianTobias GollingS. J. HongM. A. StrangLimin WangL. ChristofekD. ChapinR. L. MccarthyHeriberto Castilla-valdezJ. A. ParsonsP. VerdierT. ScanlonS. KermicheTiefu ZhaoG. SteinbrückN. A. NaumannSuman Bala BeriRobert HarringtonJ. N. ButlerE. De La Cruz-bureloP. D. GrannisK. GenserV. M. AbazovUlrike BlumenscheinV. SharyM. ZdrazilJ. SteeleS. Söldner-remboldS. ReucroftJing LiSeo Won LeeD. KäferA. BellavanceP. MättigH. WeertsM. DoidgeZ. M. WangP. L.m. Podesta-lermaVivian O'dellK. M. ChanChristian ZeitnitzM. BinderA. JusteTodd AdamsAndrew BrandtG. SajotJean-laurent AgramJ. TorborgRaimund StröhmerIain Alexander BertramV. SimakH.e. MiettinenCarsten HenselS. KrzywdzinskiR. IllingworthB. G. PopeA. EvdokimovS. SenguptaBrad AbbottSergio F NovaesMichael RijssenbeekA. C. Le BihanPierre PetroffP. PadleyA. ZylberstejnF. LehnerF. LehnerH. GreenleeElizaveta ShabalinaB. C.k. CaseyYurii MaravinVladimir GavrilovGordon WattsChristian SchmittS. NelsonV. SirotenkoM. CristetiuM. H.g. SouzaD. WickeMitchell WayneH. SchellmanJ. M. KohliTuan Vu AnhD. EdmundsV. N. EvdokimovI. Ripp-baudotI. HallO. V. EroshinY. SongM. PetteniA. BrossStefan GrünendahlD. EvansPhillip GutierrezA. ChandraMossadek TalbyB. GómezW. D. ShephardSerban ProtopopescuR. MccroskeyAndre SznajderR. GelhausH. E. MontgomeryKyoung-ho KimAndy HaasShashikant DugadYuri GershteinEmmanuelle PerezL. DuflotN.v. MokhovB. ÅSmanB. ÅSmanB. ÅSmanF. BlekmanS. GrederA. P. HeinsonG. S. MuanzaReinhard SchwienhorstR. E. HallA. JenkinsP. A. RapidisDaniel WhitesonNikos VarelasP. SkubicH. E. FiskBing ZhouSarah Catherine EnoHorst SeveriniAdam L. LyonA. JonckheereS. DeanAran Garcia-bellidoStephan LinnD. R. ClaesA. LobodenkoGavin DaviesS. DoulasM. AnastasoaieKaushik DeArnulf QuadtElemer NagyN. OshimaI. BlacklerJan StarkHenry LubattiDaniel BlochDaria ZieminskaL. LoboLorenzo FeligioniLaurent ChevalierStephen WimpennyMartin GrunewaldV. WhiteR. D. SchambergerMilos LokajicekRichard B. LiptonDarien WoodT. R. WyattNicholas John HadleyS. BlessingScott SnyderA. BadenG. C. BlazeyY. YenPushpalatha C BhatReiner HauserR. YamadaM. A.c. CummingsJean-francois GrivazS. H. AhnP. De JongB. HoeneisenLee SawyerP. JonssonThomas HebbekerM. MuldersL. HanMary Beth AdamsS.a. KahnKristian HarderM. DemarteauD. CuttsWagner CarvalhoCarmen GarcíaGreg LandsbergPedrame BargassaK. SoustruznikN. J. BuchananChristophe RoyonH. D. WahlD. BauerO. PetersE. GalyaevT. YasudaWendy TaylorRoger MooreM. P. SandersA. MagerkurthA. ZatserklyaniyB. S. AcharyaM. LynkerX. F. SongM. HohlfeldS. N. GurzhievViatcheslav StolinJ. MolinaCarlos AvilaS. SumowidagdoSabine Crépé-renaudinGuennadi BorissovW. C. FisherNeeti ParasharM. ZielinskiSuyong ChoiGregorio BernardiD. DenisovJ. M. HeinmillerHal EvansThomas FerbelJ. GardnerWalter FreemanJ. KotcherS. AndersonHarald FoxM. VaupelY. D. MutafI. A. VasilyevP. M. PereaVipin BhatnagarN. LahrichiR. PartridgeX. ZhangChristian AutermannV. L. MalyshevH. S. MaoE. ThomasT. TooleS. LagerS. LagerS. LagerK. W. MerrittS. UvarovJ. F. BartlettH. L. MelansonM. WegnerRobert KehoeM. AgelouA. M. MagnanM. YanB. QuinnMakoto TomotoAlice BeanSergey BurdinS. P. DenisovN. OliveiraG. AlkhazovMarkus KluteEmmanuel BusatoJ. ZhuEmily NurseElizabeth GallasJohannes ElmsheuserJ. T. EltzrothP. NeustroevR. JesikK. A. JohnsS. J. De JongB. KothariJ. CossFrank FiedlerE. KajfaszT. GadfortR. HooperV. OguriA. KoubarovskyJ. HaysGustaaf BrooijmansJ. WarcholKarel Smolek

subject

PhysicsNuclear magnetic resonance010308 nuclear & particles physics0103 physical sciencesMass spectrumAnalytical chemistryGeneral Physics and AstronomyHigh Energy Physics::Experiment010306 general physicsLambda01 natural sciences

description

We present measurements of the Lambda(b)(0) lifetime in the exclusive decay channel Lambda(b)(0)-> J/psi Lambda(0), with J/psi ->mu(+)mu(-) and Lambda(0)-> p pi(-), the B-0 lifetime in the decay B-0-> J/psi K-S(0) with J/psi ->mu(+)mu(-) and K-S(0)->pi(+)pi(-), and the ratio of these lifetimes. The analysis is based on approximately 250 pb(-1) of data recorded with the D0 detector in p (p) over bar collisions at root s = 1.96 TeV. The Lambda(b)(0) lifetime is determined to be tau(Lambda(b)(0))=1.22(-0.18)(+0.22)(stat)+/- 0.04(syst) ps, the B-0 lifetime tau(B-0)=1.40(-) (+0.11)(0.10)(stat)+/- 0.03(syst) ps, and the ratio tau(Lambda(b)(0))/tau(B-0)=0.87(-) (+0.17)(0.14)(stat)+/- 0.03(syst). In contrast with previous measurements using semileptonic decays, this is the first determination of the Lambda(b)(0) lifetime based on a fully reconstructed decay channel.

yearjournalcountryeditionlanguage
2005-03-16Physical Review Letters
https://doi.org/10.1103/physrevlett.94.102001