6533b834fe1ef96bd129ce1c

RESEARCH PRODUCT

A measurement of the \(\tau\) leptonic branching fractions

Lucio CerritoJ.d. RichardsonRichard JacobssonA. BaroncelliP. Van DamA. PetroliniB. De LottoG. CrosettiEvgueni VlasovA. G. FrodesenG. SmadjaJ. Van EldikP. JalochaE. K. JohanssonC. De La VaissiereSteinar StapnesJ. M. LopezThemistocles BowcockA. TilquinP. AbreuS. C. BlythBarry KingG. WilkinsonT. S. HillE. SpiritiH. HerrL. G. TkatchevA. DaumDietrich LikoN. VassilopoulosA. G. OlshevskiR. FrühwirthJ. TimmermansA. SeitzP. H. KramerPierre BilloirF. StichelbautP. BuschmannR. Mc KayAriella CattaiK. StepaniakChariclia PetridouChariclia PetridouMaciej GórskiM. BerggrenV. MalychevG. GrosdidierA. AndreazzaJuan Abel BarrioZ. KrumsteinM. DavenportA. De MinI. SiccamaA. StocchiG. SajotPierre JuillotE. BoudinovB. KoeneI. StavitskiBranislav SitarPaolo MorettiniJ. G. LokenC. De Saint-jeanP. BeilliereW. HaoO. BarringM. ChapkinG. D. AlekseevTiziano RovelliVaclav VrbaPaul BaillonD. ZontarM. SzeptyckaMaria Roberta MongeA. ZalewskaH. PalkaHans DijkstraP. PriviteraTord EkelofTh D. PapadopoulouA. GalloniO. PodobrinM. RealeDaniel TreilleM. BigiP. V. ChliapnikovJ. RidkyO. SmirnovaI. LedroitSandra AmatoA. N. SisakianG. W. Van ApeldoornL. VenturaK. YipR. LindnerY. LemoigneS. O. HolmgrenL. S. VertogradovP. PoropatW. Oberschulte-beckmannR. KeranenFrancisco MatorrasPiotr ZalewskiM. BattagliaM. Mc CubbinK. HultqvistJ. W. LamsaM. BlumeF. BaraoH. FoethW. T. MeyerB. UeberschaerJacques LemonneM. WeilersB. MurynP. HerquetR. ContriB. LoerstadE. VerbeureL. BuggeA. J. Camacho RozasD. Z. ToetP. SiegristA. SadovskyR. C. ShellardR. C. ShellardJ. E. AugustinKlaus HamacherR. A. BrennerC. JoramW. NeumannC. ParkesPascal PaganiniC. Mariinez-riveroNikita SmirnovImad Baptiste LaktinehS. SquarciaH. SaarikkoT. BurgsmuellerM. WeierstallE. HigonS. BosworthD. Souza-santosA. M. SegarM. FeindtS. Sánchez NavasG. VegniF. FontanelliT. TabarelliP. NegriA. De AngelisP. CollinsMaurizio CanepaLaurent MirabitoI. RippR. JanikP. A. FischerWinfried MitaroffS. J. AlvsvaagE. AgasiChristine KourkoumelisE. Dahl-jensenV.a. UvarovLouis LyonsP. RebecchiY. DufourDaniel BlochAhmimed OuraouD. J. HolthuizenY. SacquinMilos LokajicekManolis DrisP. RoudeauR. AleksanRobert S. BrownDenis GeléP. SponholzP. CarrilhoJ. J. HernandezM. MichelottoL. MundimL. MundimA. Lopez-fernandezMarc WinterP. KubinecD. VilanovaT. L. HessingW. D. ApelH. RahmaniD. FassouliotisJ. FusterL. TortoraAlberto BenvenutiP. DelpierreClara TronconJ-c. MarinB. ErzenR. GokieliPatrick JarryJ. ChauveauG. RinaudoJ. SaltMogens DamR. LauhakangasPh. CharpentierG. MyattDemetrios LoukasF. J. HarrisO. UllalandLeif J. JönssonWolfgang AdamP. GunnarssonSpyros TzamariasO. TchikilevC. CasoD. BertrandG. ValentiSandor CzellarG. PolokCarlos LacastaP. B. RentonD. C. FriesF. ScuriF. ScuriA. M. WetherellH. WahlenJ. H. KoehneL. LanceriStéphane PlaszczynskiV. Ruhlmann-kleiderF. CarenaA. FirestoneK. H. BecksJ. N. JacksonJ. RamesAndrei NomerotskiE. VallazzaYu. GouzF. PierreC. KreuterA. BuysW.s.c. WilliamsJ. P. TavernetB. MarechalP. KokkiniasErnesto MiglioreM. VerlatoK. D. BrandN. I. ZiminUgo GaspariniYu. BelokopytovE. CortinaVincent HedbergD. W. LaneMarta CalviLuis PeraltaF. KapustaH. B. CrawleyL. BrillaultM. PernickaR. HenriquesV. ChorowiczG. EkspongGeoffrey SmithC. K. LeganA. PulliaB. FranekW. KrupinskiR. MoellerJesus MarcoG. LenzenMariusz WitekR. StrubF. Martinez-vidalV. KostioukhineM. KoratzinosM. GuntherW. RuckstuhlC. GasparP. N. RatoffK. A. DreesS. Marti I GarciaD. EdsallJ. P. EngelH. J. HilkeM. V. Castillo GimenezT. BrenkeM. ZitoL. K. ResvanisRupert LeitnerG. PianaS. SimonettiM. BegalliG. MatthiaeK. KurvinenD. WickeJavier SánchezAlessandra RomeroM. DonszelmannMassimo CacciaPaul DaunceyN. DemariaA. RuizG. DamgaardP. NissJ. GuyM. PrestG. C. ZucchelliT. SpassovA. MaioM. A E SchynsAllan HallgrenB. TomeDanilo ZavrtanikU. HaedingerM. MazzucatoJosef StraussP. AntilogusV. ChabaudM. Espirito SantoTim AdyeF. DjamaMarek SzczekowskiT. TodorovV. GraccoM. GibbsV. LepeltierW. VenusE. RossoH. KleinPaolo RoncheseN. J. KjaerPavlos IoannouPaolo ChecchiaK. OsterbergM. L. TurluerR. NicolaidouPh. GavilletM. J. BatesStefano RagazziD. ReidV. BocciI. KronkvistM. KaiserKlaus MoenigFabrizio ParodiM. A. HouldenR. SosnowskiG. TristramToralf Bernhard SkaaliP. VincentF. NaraghiPhillip AllportJ. MacnaughtonR. BarateClaire BourdariosM. NieuwenhuizenD. GambaV. NikolaenkoGianni ZumerleC. DefoixF. Fulda-quenzerAndromachi TsirouAndre AugustinusE. GrazianiW. Da SilvaG. BorisovM. BaubillierV. CanaleF. RichardP. ChochulaC. MatteuzziM. HahnF. FormentiF. CaoS. AlmehedR. ChiericiF. HahnJ. M. BrunetMario SanninoM. GandelmanM. GandelmanM. A. Lopez AgueraB. BouquetG. Della RiccaG. Della RiccaJ. H. WickensB. GolobT. BuranMarkus ElsingA. M. ZaitsevAlexander VodopyanovF. BianchiN. ErshaidatA. FerrerR. ZuberiA. TomaradzeAndrea PerrottaE. KarvelasCristian StanescuOlga BotnerP. BranchiniB. Jean-marieKrzysztof KorcylH. SchneiderJ. Cuevas MaestroO. KouznetsovR. OravaCarmen GarcíaR. Mc NultyH. De BoeckMartino MargoniE. FokitisE. I. RosenbergM. TyndelB. D'almagneM. PegoraroG. EigenTiziano CamporesiG. CosmeF. CossuttiF. CossuttiP. J. HoltN. G. RedaelliMarco BozzoP. FrenkielF. WaldnerF. WaldnerJ. BaudotJ. DolbeauC. WalckI. A. TyapkinA. NormandI. V. AjinenkoP. BambadeLuc PapeAnna LipniackaM. BonesiniChiara MariottiP. BruckmanP.s.l. BoothKathy HuetValeriy PozdniakovT. BolognesePer JönssonO. YushchenkoF. SimonettoR. SekulinW. BoniventoKerem CankocakS. HahnG. LederFrancesca Romana CavalloB. ÅSmanMarcos DracosN. NeumeisterV. LefebureT. MoaLydia RoosD. CrennellF. MandlG. MaehlumJ. DreesV. V. LapinEvangelos GazisC. Vander VeldeG. TranstromexC. De ClercqW. J. MurrayM. L. AndrieuxWojciech KucewiczAntonio OnofreWilliam TrischukA. MarkouCharles BricmanL. ChaussardM. S. BilenkyL.j. CarrollJ. MedboP. WeilhammerT. LesiakI. LippiMarco PaganoniJose Luis ContrerasL. VitaleL. VitaleD. RadojicicH. PerneggerP. LutzMaria Elena PolMaria Elena PolS. KatsanevasD. Y. BardinM. KarlssonT. A. FilippasM. ReglerR. EhretYu. SedykhH. MuellerBorge Svane NielsenB. StuguS. De BrabandereAlexander Lincoln ReadJ. HrubecKrzysztof DorobaChiara MeroniGoeran JarlskogP. PagesGary John BarkerK. WoschnaggE. C. KatsoufisG. GopalL. De PaulaE. FalkPeter KluitM. PimentaB. A. KhomenkoFrancesco NavarriaP. LangefeldT. MaronL. GornS. LamblotA. KlovningY. ArnoudU. MjoernmarkC. BosioH. T. PhillipsVladimir CindroF. DupontL. Di CiaccioJan KrolikowskiN. N. KhovanskiW. BartlJ. P. LaugierJ. P. GerberA. TrombiniF. ZachStanislav NemecekN. PukhaevaJ. DahmG. A. ChelkovUgo AmaldiW. De BoerE. ZevgolatakosG. SciollaW. Van DoninckC. ZacharatouJ. GarciaV. ObraztsovI. RoncaglioloA. Passeri

subject

Nuclear and High Energy PhysicsParticle physicsElectron–positron annihilationElectronComputer Science::Digital Libraries01 natural sciencesPartícules (Física nuclear)Nuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicslepton couplingCharged currentDELPHIPhysicsMuon010308 nuclear & particles physicsBranching fractionPhysicsHigh Energy Physics::Phenomenologytau leptonLARGE ELECTRON POSITRON COLLIDERUniversality (dynamical systems)Massless particlePARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIComputer Science::Mathematical SoftwarePARTICLE PHYSICSHigh Energy Physics::ExperimentFísica nuclearParticle Physics - ExperimentDELPHI; tau lepton; lepton couplingLepton

description

Abstract: A sample of 25000 Z(0) --> tau(-)tau(+) events collected by the DELPHI experiment at LEP in 1991 and 1992 is used to measure the leptonic branching fractions of the tau lepton. The results are B(tau --> e nu) = (17.51+/-0.39)% and B(tau --> mu nu) = (17.02+/-0.31)%. The ratio of the muon and electron couplings to the weak charged current is measured to be g(mu)/g(e) = 1.000+/-0.013, satisfying e-mu universality. The average leptonic branching fraction corrected to the value for a massless lepton, assuming e-mu universality, is found to be B(tau --> l nu) = (17.50+/-0.25)%.

yearjournalcountryeditionlanguage
1995-01-01
10.1016/0370-2693(95)00987-vhttps://dare.uva.nl/personal/pure/en/publications/a-measurement-of-the-tau-leptonic-branching-fractions(2183154a-fadc-47af-a37c-471970e7266d).html