6533b825fe1ef96bd1282ad3
RESEARCH PRODUCT
A measurement of the tau lifetime
C. GasparS. FranconM. JonkerA. B. FenyukAndrea PerrottaW. Da SilvaE. GrazianiM. CrozonR. Mc NultyP. VazLuis PeraltaE. Dahl-jensenF. SimonettoP. AbreuG. SmadjaT. MaronO.m. KouznetsovC. BricmanC. BricmanA. Elliot PeisertM. Fernandez AlonsoM. BozzoA. PulliaV. ObraztsovC. Vander VeldeC. Vander VeldeStefano RagazziA. HakanssonV. LepeltierD. VilanovaP. Van DamJ-c. MarinM. SzeptyckaRupert LeitnerJ. KestemanJ. KestemanG. D. AlekseevG. DarboB. Jean-marieN. ErshaidatG. SkjevlingM. Mc CubbinA. HallgrenK. HultqvistGeorgios StavropoulosM. TyndelT.a. FilippasK. WoschnaggT. TodorovF. MandlPh. GavilletI. LippiL. MathisH. P. BornerStefan SchaelH. FurstenauA. FerrerO. TchikilevM. VoutilainenG. GrosdidierA. RybinF. CarenaLouis LyonsJuan Abel BarrioJ.e. HooperB. LoerstadV. LapinV. LapinM.a.e. SchynsA. N. SisakianM. A. WinterM. DracosP. V. ChliapnikovR. AleksanB. BostjancicA. DaumL. K. ResvanisU. GaspariniM. DavenportA. RomeroB.s. NielsenO. BotnerGuido BarbielliniJ. GuyTim AdyeM. RichardsonClaire BourdariosJ. P. GerberW.s.c. WilliamsT. HenkesB. De LottoB. De LottoEvgueni VlasovM. SzczekowskiM. KoratzinosMaria Elena PolS. KatsanevasJ.-e. AugustinW.a. MitaroffH. BurmeisterD. Y. BardinR. FruhwirthA. RuizC. DefoixM. WitekH. HerrG. W. Van ApeldoornP. F. HonoreG. RinaudoR. CampionMassimo CacciaJ. T.m. ChrinVladimir NikolaenkoItzhak RoditiR. PainL. G. TkatchevG. LederA. SeitzJ. TimmermansG. SciollaY. LemoigneJ. WernerH. PerneggerW. K. Van DoninckW. K. Van DoninckM. MargoniM. MichelottoC. J. BeestonK. KulkaRobert S. BrownE. CortinaD. JohnsonR. EhretH. StaeckB. NijjharJ. DaviesA. BaroncelliP. JalochaH. SaarikkoO. PodobrinA. WehrV. CanaleM.a. Lopez AgueraFrancesca Romana CavalloP. NissS. TzamariasEugene P. GrossA. ChanB. DalmagneE. RossoH. KleinT. S. SpassoffL. VenturaM.p. ClaraA. De MinI. SiccamaT. TabarelliM. DrisU. Kruener-marquisW. RuckstuhlW.t. MeyerMitchell WayneI. HietanenLaurent ChevalierM. HouldenM. MazzucatoF. HahnH. MuellerG. SajotV. ChorowiczP.h. KramerE. LiebK. OsterbergF. ParodiJ. J. Gomez Y CadenasF. RichardR. SekulinJ. HrubecG. WormserL. TortoraG. A. ChelkovD. BertrandD. BertrandK. HuetK. HuetPatrick JarryP. BeltranK. DorobaK. KorcylP. N. BogolubovChristine KourkoumelisC. LambropoulosUgo AmaldiAriella CattaiJ. SaltW. De BoerE. ZevgolatakosP. E. S. NilsenW. J. MurrayC. MatteuzziMilos LokajicekT.e. PettersenA. MaioM. LosM. HahnM. Van Der HeijdenK.a.j. ForbesC. StanescuC.o. HigginsP. MorettiniF. LedroitF. Fulda-quenzerB. GolobJ. Cuevas MaestroR. StrubA. PetroliniN. J. KjaerV. KostioukhineR. MoellerJ. KrolikowskiT. MoaR. HolmesPierre JuillotB. KoeneS. AlmehedS. GumenyukM. KarlssonO. UllalandLeif J. JönssonE.c. KatsoufisAlberto BenvenutiM. PegoraroG. SetteP.s.l. BoothM. ReglerS. MartiG. MatthiaeE.n. GazisK.-h. BecksR. ContriP. YepesA. MaltezosA. FirestoneE. SpiritiP. FrenkielS. SimonettiG. PolokG. CosmeS. J. AlvsvaagE. AgasiTiziano CamporesiG. DamgaardRichard BrennerF. J. HarrisFares DjamaH. BriandG.j. BarkerGeorge KalkanisP. B. RentonS. SquarciaN. G. RedaelliR. LindnerCarlos LacastaG. VegniD. FassouliotisWilliam TrischukA. MarkouJ. G. LokenH. FoethG. MaehlumM. L. TurluerE. VallazzaD. LikoN. DemariaG. Hamel De MonchenaultT. EkelofN. BrummerB. FranekTiziano RovelliD. ReidD. C. FriesPaula EerolaS. StapnesJ. StraverR. J. ApsimonP. PriviteraK. KurvinenM. VerlatoF. WaldnerF. WaldnerS. BraibantS. BraibantV. ChabaudJavier SánchezD. J. HolthuizenS. UeberschaerM. WeierstallH.b. CrawleyD. ZavrtanikR. Mc NayC. WalckMarta CalviR. BarateG. E. KalmusW. VenusGuenakh MitselmakherJ. J. HernandezP. O. HulthC. RonnqvistZ. HajdukW. HaoO. BarringS. HaiderA. P. OstankovF. CouchotP. DelpierreF. CaoF. CaoA. TilquinP. Grosse-wiesmannA. De AngelisG. GopalE. FokitisA. ZalewskaGeoffrey SmithP. CollinsP. HerquetP. HerquetM. GorskiP. ChecchiaA. G. OlshevskiM. DamE. DaubieE. DaubieG. CrosettiP. PoropatP. PoropatChariclia PetridouChariclia PetridouAndromachi TsirouP. VincentDaniel BlochO. PingotO. PingotG. LenzenMario SanninoB. BouquetD. Souza-santosI. KronkvistP. RoncheseP. RoudeauJ. MaillardS. RossiV. G. TimofeevJ. ChauveauF. BianchiAndre AugustinusJ.n. JacksonAhmimed OuraouV.m. GolovatyukF. BaraoY. SacquinG. MyattLuc PapeV. GraccoG. BorisovR. OravaM. BerggrenM. J. BatesE. HigonR. SeufertR. GokieliS. BosworthBruno SchulzeF. ScuriF. ScuriDaniel TreilleS. D. HodgsonT. BuranA. M. WetherellA.l. ReadA. M. ZaitsevAlexander VodopyanovE. G. AnassontzisJ. P. EngelP. BambadeM. V. Castillo GimenezWolfgang AdamL. LanceriL. LanceriStéphane PlaszczynskiM.r. MongeJ. DolbeauG. VoulgarisLaurent MirabitoL. Di CiaccioA. LipniackaC. De ClercqC. De ClercqE.i. RosenbergR. ZuberiU. RossiE. KarvelasB. KingPaolo GiacomelliB. StuguF. StichelbautF. StichelbautPavlos IoannouA. PasseriYu. BelokopytovM. ZitoCarmen GarcíaKlaus MoenigI. MikulecI. RoncaglioloJuan FusterR. SosnowskiU. HaedingerJ. LindgrenL. CarrollJ. M. LevyG. ZumerleE.n. TsyganovMarco PaganoniJose Luis ContrerasP. BranchiniM. FeindtP. NegriH. SchneiderGöran JarlskogD. RadojicicJan RidkyJ. StraussL.-o. EekB. GrosseteteW. D. ApelTh D. PapadopoulouR. LauhakangasPh. CharpentierH. WahlenG. ZhangM. SessaM. SessaM. S. BilenkyW. BartlM. DonszelmannA. Koch-mehrinP. WeilhammerP. BilloirT. LesiakPeter M. AllenM. PimentaB. A. KhomenkoN. De GrootA. StocchiFrancesco NavarriaJ. ZúñigaFernand GrardFernand GrardD. CrennellT. HofmoklW. KucewiczM. VollmerD. GambaJ. J. LozanoChiara MeroniJan BuytaertD. BenedicPeter KluitA. KlovningH. De BoeckH. De BoeckI.a. TyapkinY. ArnoudU. MjoernmarkJ. GarciaF. DupontAndrey KorytovN. N. KhovanskiP. LutzJ. A. Valls FerrerJ.-m. BrunetJ. P. LaugierJ. BjarneB. TomeP. AntilogusDemetrios LoukasG. ValentiF. PierreVincent HedbergG. EkspongP. N. RatoffP. N. RatoffM. BegalliJ.w. LamsaS. O. HolmgrenC. BosioH. J. HilkeK.d. BrandM. PernickaL. S. VertogradovL. ChaussardL. VitaleA. AlgeriR. Zukanovich FunchalJ.h. WickensJ.h. WickensJ. DreesO. TokerE. TorassaR. C. ShellardAriel GoobarG. E. TheodosiouJ. H. KoehneA. M. SegarP. S. IversenT.l. HessingS. C. BlythG. MeolaG. WilkinsonF. KapustaV. Ruhlmann-kleiderP. BeilliereM.d.m. De Fez LasoV.a. UvarovG. TristramJ. MarcoA. AndreazzaPaul BaillonP. KokkiniasP. DavidJ. LemonneJ. LemonneM. BattagliaR. KeranenFrancisco MatorrasN. YamdagniY. DufourU. TrevisanP. D. DaunceySandor CzellarH. RahmaniP. ZalewskiP. SzymanskiK. HamacherA.j. Camacho RozasA. GrantV. VrbaHans DijkstraK. FurnivalM. BonesiniT. BologneseW. BoniventoV. BocciE. K. JohanssonM. BaubillierJ.-l. FoussetT.j.v. BowcockD. Z. ToetP. SiegristL. CerritoL. BuggeA. Lopez-fernandezF. FontanelliF. VerbeureF. VerbeureTuure TuuvaClara TronconC. De La VaissiereJ. PennanenN. I. ZiminA. G. Frodesensubject
PhysicsCoupling constantParticle physicsArgusNuclear and High Energy PhysicsMuonPhysics and Astronomy (miscellaneous)010308 nuclear & particles physicsElectron–positron annihilation01 natural sciences7. Clean energyNuclear physics0103 physical sciencesDecay lengthLEPTONS[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]High Energy Physics::ExperimentFísica nuclearCombined result010306 general physicscomputerParticle Physics - ExperimentFermi Gamma-ray Space TelescopeLeptoncomputer.programming_languagedescription
The tau lepton lifetime is measured using four different methods with the DELPHI detector. Three measurements using one prong decays are combined, accounting for correlations, resulting in tau(tau) = 298 +/- 7 (stat.) +/- 4 (syst.) fs while the decay length distribution of three prong decays gives tau(tau) = 298 +/- 13 (stat.) +/- 5 (syst.) fs. The combined result is tau(tau) = 298 +/- 7 fs. The ratio of the Fermi coupling constant from tau decay relative to that from muon decay is found to be 0.985 +/- 0.013, compatible with lepton universality.
year | journal | country | edition | language |
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1993-01-01 |