6533b82bfe1ef96bd128e190
RESEARCH PRODUCT
A Precise Measurement of the Tau Lepton Lifetime
Z. KrumsteinA. PasseriA. De MinO. YushchenkoI. SiccamaR. LauhakangasW. Da SilvaA. BaroncelliP. Van DamA. FirestoneG. SajotC. De La VaissiereR. SekulinA. TilquinBarry KingE. SpiritiR. FrühwirthG. MaehlumiJ. TimmermansA. LipniackaPierre JuillotO. PodobrinB. KoeneF. StichelbautP. BuschmannB. MurynR. Mc KayC. Vander VeldeC. Vander VeldePaolo MorettiniPiotr ZalewskiJ. G. LokenC. De Saint-jeanP. BeilliereR. HenriquesW. HaoO. BarringW. K. Van DoninckW. K. Van DoninckF. RichardP. ChochulaRobert S. BrownC. MatteuzziG. A. ChelkovM. DonszelmannC. DefoixUgo AmaldiLydia RoosT. MoaMariusz WitekM. GuntherA. AndreazzaD. VilanovaJ-c. MarinB. ErzenR. GokieliRupert LeitnerG. PianaC. Martinez-riveroJ. DreesW. De BoerLuis PeraltaF. KapustaS. AlmehedR. ChiericiA. BuysF. Fulda-quenzerE. GrazianiStefano RagazziF. HahnH. PalkaL. BuggeA. J. Camacho RozasKlaus HamacherD. Z. ToetP. SiegristAndrea PerrottaG. SmadjaJ. Van EldikG. MatthiaeJ. M. BrunetI. RippD. Souza-santosD. Souza-santosT. S. HillP. GunnarssonJ. P. TavernetEvangelos GazisO. SmirnovaM. SchimmelpfennigE. ZevgolatakosR. KeranenDanilo ZavrtanikA. MiagkovSpyros TzamariasO. TchikilevC. JoramC. BricmanC. BricmanR. A. BrennerFares DjamaM. E. PolM. E. PolAntonio OnofreWilliam TrischukR. JanikA. MarkouDietrich LikoA. G. OlshevskiH. FoethS. C. BlythG. WilkinsonPhilippe CharpentierFrancisco MatorrasJ. M. LopezV.a. UvarovF. FormentiF. CaoF. CaoA. MaioS. J. AlvsvaagE. AgasiT. BrenkeM. ZitoB. UeberschaerG. SciollaG. CosmeG. VegniL. M. MundimL. M. MundimD. BertrandD. BertrandL. ChaussardP. HerquetP. HerquetR. ContriA. De AngelisP. CollinsMaurizio CanepaS. KatsanevasPatrick JarryJ. ChauveauG. RinaudoJ. SaltR. Mc NultyU. SchwickerathW. KrupinskiH. De BoeckH. De BoeckK. GrzelakM. PrestM. PrestJ. P. EngelP. BambadeChariclia PetridouChariclia PetridouM. PindoAllan HallgrenTiziano RovelliDaniel BlochG. W. Van ApeldoornT. BurgsmuellerM. TyndelE. K. JohanssonAhmimed OuraouE. CortinaD. Y. BardinM. KarlssonM. PegoraroJ. J. HernandezL. VenturaK. YipR. LindnerManolis DrisY. LemoigneJ. N. JacksonM. V. Castillo GimenezBranislav SitarI. StavitskiN. DemariaG. DamgaardB. TomeL.n. GerdyukovP. AntilogusB. GolobJ. RamesA. GalloniS. O. HolmgrenL. S. VertogradovP. PoropatP. PoropatMaria Roberta MongeP. KokkiniasD. J. HolthuizenSteinar StapnesN. VassilopoulosT. BuranAlberto BenvenutiMarkus ElsingM. RealeTheodora PapadopoulouPaul BaillonD. ZontarM. SzeptyckaC. K. LeganP. DelpierreN. ErshaidatA. FerrerW. T. MeyerKonstantinos PapageorgiouMogens DamW. RuckstuhlT. A. FilippasChiara MariottiM. WeierstallM. ReglerDaniel TreilleM. BigiV. GraccoM. BerggrenM. PetrovyckM. GibbsJ. B. LoerstadLuc PapeC. GasparW. Oberschulte-beckmannS. HoorelbekeS. HoorelbekePhillip AllportY. SacquinT. L. HessingR. ZuberiM.a. Lopez AgueraS. HahnFrancesca Romana CavalloA. TomaradzeA. TomaradzeD. EdsallaG. MyattOlga BotnerM. BattagliaC. ZacharatouJ. GarciaG. C. ZucchelliLucio CerritoJ.d. RichardsonPaolo RoncheseR. C. ShellardR. C. ShellardJosef HrubecJ. RidkyW. NeumannN. J. KjaerV. MalychevG. TranstromerChristine KourkoumelisWolfgang AdamCarmen GarcíaM. A. WinterRichard JacobssonA. PetroliniKathy HuetKathy HuetValeriy PozdniakovA. M. SegarR. EhretLaurent MirabitoK. KurvinenV. LepeltierB. De LottoB. De LottoG. CrosettiG. CrosettiEvgueni VlasovC. De ClercqC. De ClercqW. J. MurrayMarek SzczekowskiO. KouznetsovY. DufourV. BocciF. FontanelliD. WickeE. Dahl-jensenJavier SánchezA. TrombiniW.s.c. WilliamsC. MaocunC. MaocunP. D. DaunceySandor CzellarH. WahlenPaolo ChecchiaR. MoellerPh. GavilletM. KaiserG. TristramKlaus MoenigFabrizio ParodiT. BologneseV. CanaleCristian StanescuP. BranchiniA. Lopez-fernandezM. A. HouldenPer JönssonYu. BelokopytovYu. BelokopytovR. StrubC. ParkesH. HerrL. G. TkatchevA. SeitzJ.-e. AugustinYu. SedykhL. K. ResvanisJ. MacnaughtonR. BarateP. KubinecV. Ruhlmann-kleiderH. SchneiderV. ObraztsovG. PolokClara TronconK. H. BecksClaire BourdariosE. VallazzaYu. GouzM. NieuwenhuizenMassimo CacciaV. ChorowiczP. BruckmanH. MuellerG. ValentiW. BoniventoT. J. V. BowcockVladimir NikolaenkoJ. W. LamsaG. BorisovM. BlumeF. BaraoA. DeghorainA. DeghorainM. BaubillierP. H. KramerF. PierreErnesto MigliorePierre BilloirP. JalochaE. RossoH. KleinM. VerlatoKerem CankocakT. TodorovI. RoncaglioloTiziano CamporesiMartino MargoniNikita SmirnovE. HigonS. BosworthP. J. HoltF. ScuriF. ScuriE. FokitisE. I. RosenbergK. D. BrandVincent HedbergC. CasoD. W. LaneA. M. WetherellD. C. FriesN. I. ZiminK. OsterbergMarcos DracosVaclav VrbaL. LanceriL. LanceriStéphane PlaszczynskiN. G. RedaelliHans DijkstraMarco BozzoP. PaganiniG. EkspongP. PriviteraAlexander VodopyanovJ. P. GerberB. MarechalP. FrenkielI. A. TyapkinH. J. HilkeP. N. RatoffMarta CalviP. NissL. CarroirMario SanninoB. BouquetI. V. AjinenkoM. FeindtF. BianchiS. Sánchez NavasP. NegriF. WaldnerF. WaldnerGeoffrey SmithM. J. BatesS. SimonettiP. B. Ren TonH. B. CrawleyL. BrillaultJ. BaudotM. MazzucatoR. OravaT. TabarelliM. BonesiniH. RahmaniC. WalckYu.a. KhokhlovA. G. FrodesenA. NormandC. WeiserF. ZachD. FassouliotisS. S. MeyerUgo GaspariniF. LedroitJ. FusterJacques LemonneJacques LemonneO. UllalandLeif J. JönssonG. EigenE. KarvelasMaciej GórskiToralf Bernhard SkaaliM. DavenportStanislav NemecekN. PukhaevaP. SponholzJ. DolbeauP. V. ChliapnikovJ. Cuevas MaestroD. GambaK. A. DreesP.s.l. BoothP. CarrilhoAndrei NomerotskiWinfried MitaroffJ. DahmM. WielersLouis LyonsF. VerbeureF. VerbeureO. SolovianovR. AleksanB. FranekK. KarafasoulisJ. GuyM. L. TurluerD. ReidP. AbreuI. LippiDemetrios LoukasP. RebecchiTim AdyeB. StuguS. GumenyukM. GandelmanM. GandelmanGianni ZumerleW. D. ApelAriella CattaiG. D. AlekseevJuan Abel BarrioAndromachi TsirouSandra AmatoAndre AugustinusB. Jean-marieAlexander Lincoln ReadImad Baptiste LaktinehS. SquarciaH. SaarikkoM. Mc CubbinK. HultqvistF. CarenaGoeran JarlskogP. PagesGary John BarkerK. WoschnaggE. C. KatsoufisG. GopalL. De PaulaE. FalkP. RoudeauM. PernickaJesus MarcoG. LenzenF. Martinez-vidalV. KostioukhineM. KoratzinosM. PimentaB. A. KhomenkoA. StocchiFrancesco NavarriaP. LangefeldT. MaronL. GornS. LamblotB. DalmagneG. Delia RiccaG. Delia RiccaMilos LokajicekL. TortoraF. J. HarrisCarlos LacastaBorge Svane NielsenS. De BrabandereS. De BrabandereKrzysztof DorobaChiara MeroniPeter KluitA. KlovningY. ArnoudU. MjoernmarkC. BosioH. T. PhillipsVladimir CindroF. DupontP. SeagerL. Di CiaccioJan KrolikowskiN. N. KhovanskiW. BartlJ. P. LaugierR. SosnowskiP. VincentF. NaraghiJosef StraussS. Marti I GarciaV. ChabaudM. Espirito SantoW. VenusG. GrosdidierK. KorcylAlessandra RomeroR. NicolaidouA. RuizI. KronkvistA. ZalewskaM. A E SchynsA. N. SisakianA. SadovskyM. L. AndrieuxWojciech KucewiczM. S. BilenkyP.a. FischerJ. MedboFabio CossuttiFabio CossuttiP. WeilhammerT. LesiakDenis GeléF. SimonettoG. LederB. ÅSmanV. LefebureV. LefebureD. CrennellF. MandlM. MichelottoMarcia BegalliMarcia BegalliJ. H. WickensJ. H. WickensMarco PaganoniJose Luis ContrerasC. KreuterL. VitaleL. VitaleD. RadojicicH. PerneggerManfred KrammerP. LutzTord Ekelofsubject
Nuclear and High Energy PhysicsParticle physicsAlephElectron–positron annihilation01 natural sciencesMeasure (mathematics)Partícules (Física nuclear)tau lepton lifetimeNuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsZ-DECAYSDELPHICoupling constantPhysicsMuon010308 nuclear & particles physicsDELPHI; tau lepton lifetime; one-prong; three-prongLARGE ELECTRON POSITRON COLLIDERthree-prongYield (chemistry)PARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIone-prongDecay lengthPARTICLE PHYSICSHigh Energy Physics::ExperimentFísica nuclearVertex detectorParticle Physics - ExperimentLeptondescription
The tau lepton lifetime has been measured using three different methods with the DELPHI detector. Two measurements of one-prong decays are combined, accounting for correlations, giving a result of \tau_\tau = 291.8 \pm 3.3 \mbox{ (stat.)} \pm 2.0 \mbox{(sys.) fs} while the decay length distribution of three-prong decays gives the result \tau_{\tau} = 286.7 \pm 4.9 \mbox{ (stat.)} \pm 3.3 \mbox{ (sys.) fs}. Combining the results presented here with previous DELPHI measurements, we get \tau_{\tau} = 291.4 \pm 3.0 fs and find that the ratio of the coupling constant for tau decay relative to that for muon decay is 0.990 \pm 0.009, compatible with lepton universality.
year | journal | country | edition | language |
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1996-01-01 |