6533b7d0fe1ef96bd125b944

RESEARCH PRODUCT

Updated precision measurement of the average lifetime of B hadrons

P. AbreuW. AdamT. AdyeE. AgasiI. AjinenkoR. AleksanG. D. AlekseevR. AlemanyP. P. AllportS. AlmehedU. AmaldiS. AmatoA. AndreazzaM. L. AndrieuxP. AntilogusW-d ApelY. ArnoudB. ÅsmanJ-e AugustinA. AugustinusP. BaillonP. BambadeR. BarateM. BarbiG. BarbielliniD. Y. BardinA. BaroncelliO. BarringJ. A. BarrioW. BartlM. J. BatesM. BattagliaM. BaubillierJ. BaudotK-h BecksM. BegalliP. BeilliereY. BelokopytovA. C. BenvenutiM. BerggrenD. BertrandF. BianchiM. BigiM. S. BilenkyP. BilloirD. BlochM. BlumeS. BlythT. BologneseM. BonesiniW. BoniventoP. S. L. BoothG. BorisovC. BosioS. BosworthO. BotnerE. BoudinovB. BouquetC. BourdariosT. J. V. BowcockM. BozzoP. BranchiniK. D. BrandT. BrenkeR. A. BrennerC. BricmanL. BrillaultR. C. A. BrownP. BruckmanJ-m BruneiL. BuggeT. BuranT. BurgsmuellerP. BuschmannA. BuysS. CabreraM. CacciaM. CalviA. J. Camacho RozasT. CamporesiV. CanaleM. CanepaK. CankocakF. CaoF. CarenaL. CarroirC. CasoM. V. Castillo GimenezA. CattaiF. R. CavalloL. CerritoV. ChabauP. CharpentierL. ChaussardJ. ChauveauP. ChecchiaG. A. ChelkovM. ChenR. ChiericiP. ChliapnikovP. ChochulaV. ChorowiczJ. ChudobaV. CindroP. CollinsJ. L. ContrerasR. ContriE. CortinaG. CosmeF. CossuttiH. B. CrawleyD. CrennellG. CrosettiJ. Cuevas MaestroS. CzellarE. Dahl-jensenJ. DahmB. DalmagneM. DamG. DamgaardP. D. DaunceyM. DavenportW. Da SilvaC. DefoixA. DeghorainG. Delia RiccaP. DelpierreN. DemariaA. AngelisW. BoerS. BrabandereC. ClercqC. La VaissiereB. LottoA. MinL. PaulaC. Saint-jeanH. DijkstraL. Di CaccioF. DjamaJ. DolbeauM. DonszelmannK. DorobaM. DracosJ. DreesK. -A DreesM. DrisY. DufourD. EdsallR. EhretG. EigenT. EkelofG. EkspongM. ElsingJ-p EngelN. ErshaidatB. ErzenM. Espirito SantoE. FalkD. FassouliotisM. FeindtA. FenyukA. FerrerT. A. FilippasA. FirestoneP. -A FischerH. FoethE. FokitisF. FontanelliF. FormentiB. FranekP. FrenkielD. C. FriesA. G. FrodesenR. FruhwirthF. Fulda-quenzerJ. FusterA. GalloniD. GambaM. GandelmanC. GarciaJ. GarciaC. GasparU. GaspariniP. GavilletE. N. GazisD. GeleJ-p GerberM. GibbsR. GokieliB. GolobG. GopalL. GornM. GorskiY. GouzV. GraccoE. GrazianiG. GrosdidierK. GrzelakS. GumenyukP. GunnarssonM. GuntherJ. GuyF. HahnS. HahnZ. HajdukA. HallgrenK. HamacherW. HaoF. J. HarrisV. HedbergR. HenriquesJ. J. HernandezP. HerquetH. HerrT. L. HessingE. HigonH. J. HilkeT. S. HillS-o HolmgrenP. J. HoltD. HolthuizenS. HoorelbekeM. HouldenJ. HrubecK. HuetK. HultqvistJ. N. JacksonR. JacobssonP. JalochaR. JanikC. JarlskogG. JarlskogP. JarryB. Jean-marieE. K. JohanssonL. JonssonP. JonssonC. JoramP. JuillotM. KaiserF. KapustaK. KarafasoulisM. KarlssonE. KarvelasS. KatsanevasE. C. KatsoufisR. KeranenY. KhokhlovB. A. KhomenkoN. N. KhovanskiB. KingN. J. KjaerH. KleinA. KlovningP. KluitB. KoeneP. KokkiniasM. KoratzinosK. KorcylC. KourkoumelisO. KouznetsovP. -H KramerM. KrammerC. KreuterI. KronkvistZ. KrumsteinW. KrupinskiP. KubinecW. KucewiczK. KurvinenC. LacastaI. LaktinehS. LamblotJ. W. LamsaL. LanceriD. W. LaneP. LangefeldI. LastJ-p LaugierR. LauhakangasG. LederF. LedroitV. LefebureC. K. LeganRupert LeitnerY. LemoigneJ. LemonneG. LenzenV. LepeltierT. LesiakD. LikoR. LindnerA. LipniackaI. LippiB. LoerstadJ. G. LokenJ. M. LopezD. LoukasP. LutzL. LyonsJ. MacnaughtonG. MaehlumA. MaioV. MalychevF. MandlJ. MarcoR. MarcoB. MarechalM. MargoniJ-c MarinC. MariottiA. MarkouT. MaronC. Martinez-riveroF. Martinez-vidalS. Marti I GarciaJ. MasikF. MatorrasC. MatteuzzG. MatthiaeM. MazzucatoM. Mc CubbinR. Mc KayR. Mc NultyJ. MedboM. MerkC. MeroniS. MeyerW. T. MeyerM. MichelottoE. MiglioreL. MirabitoW. A. MitaroffU. MjoernmarkT. MoaR. MoellerK. MoenigM. R. MongeP. MorettiniH. MuellerL. M. MundimW. J. MurrayB. MurynG. MyattF. NaraghiF. L. NavarriaS. NavasK. NawrockiP. NegriW. NeumannR. NicolaidouB. S. NielsenM. NieuwenhuizenV. NikolaenkoP. NissA. NomerotskiA. NormandM. NovakW. Oberschulte-beckmannV. ObraztsovA. G. OlshevskiA. OnofreR. OravaK. OsterbergA. OuraouP. PaganiniM. PaganoniP. PagesH. PalkaT. D. PapadopoulouK. PapageorgiouL. PapeC. ParkesF. ParodiA. PasseriM. PegoraroL. PeraltaH. PerneggerM. PernickaA. PerrottaC. PetridouA. PetroliniM. PetrovyckH. T. PhillipsG. PianaF. PierreM. PimentaM. PindoS. PlaszczynskiO. PodobrinM. E. PolG. PolokP. PoropatV. PozdniakovM. PrestP. PriviteraN. PukhaevaA. PulliaD. RadojicicS. RagazziH. RahmaniP. N. RatoffA. L. ReadM. RealeP. RebecchiN. G. RedaelliM. ReglerD. ReidP. B. RentonL. K. ResvanisF. RichardJ. RichardsonJ. RidkyG. RinaudoI. RippA. RomeroI. RoncaglioloP. RoncheseV. RonjinL. RoosE. I. RosenbergE. RossoP. RoudeauT. RovelliW. RuckstuhlV. Ruhlmann-kleiderA. RuizK. RybickiH. SaarikkoY. SacquinA. SadovskyG. SajotJ. SaltJ. SanchezM. SanninoM. SchimmelpfennigH. SchneiderU. SchwickerathM. A. E. SchynsG. SciollaF. ScuriP. SeagerY. SedykhA. M. SegarA. SeitzR. SekulinR. C. ShellardI. SiccamaP. SiegristS. SimonettiF. SimonettoA. N. SisakianB. SitarT. B. SkaaliG. SmadjaN. SmirnovO. SmirnovaG. R. SmithO. SolovianovR. SosnowskiD. Souza-santosT. SpassovE. SpiritiP. SponholzS. SquarciaC. StanescuS. StapnesI. StavitskiF. StichelbautA. StocchiJ. StraussR. StrubB. StuguM. SzczekowskiM. SzeptyckaT. TabarelliJ. P. TavernetO. TchikilevA. TilquinJ. TimmermansL. G. TkatchevT. TodorovD. Z. ToetA. TomaradzeB. TomeA. TonazzoL. TortoraG. TranstromerD. TreilleW. TriscbukG. TristramA. TrombiniC. TronconA. TsirouM-l TurluerI. A. TyapkinM. TyndelS. TzamariasB. UeberschaerO. UllalandV. UvarovG. ValentiE. VallazzaC. Vander VeldeG. W. ApeldoornP. DamW. K. DoninckJ. EldikN. VassilopoulosG. VegniL. VenturaW. VenusF. VerbeureM. VerlatoL. S. VertogradovD. VilanovaP. VincentL. VitaleE. VlasovA. S. VodopyanovV. VrbaH. WahlenC. WalckM. WeierstallP. WeilhammerC. WeiserA. M. WetherellD. WickeJ. H. WickensM. WielersG. R. WilkinsonW. S. C. WilliamsM. WinterM. WitekK. WoschnaggK. YipO. YushchenkoF. ZachA. ZaitsevA. ZalewskaP. ZalewskiD. ZavrtanikE. ZevgolatakosN. I. ZiminM. ZitoD. ZontarR. ZuberiG. C. ZucchelliG. Zumerle

subject

Nuclear and High Energy PhysicsParticle physicsElectron–positron annihilationHadron01 natural sciencesb taggingPartícules (Física nuclear)030218 nuclear medicine & medical imagingNuclear physics03 medical and health sciencesinclusive reconstruction0302 clinical medicine0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear ExperimentDELPHIPhysics010308 nuclear & particles physicsLARGE ELECTRON POSITRON COLLIDERCharged particleB hadrons lifetimeDELPHI; B hadrons lifetime; inclusive reconstruction; b taggingPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIPARTICLE PHYSICSHigh Energy Physics::ExperimentFísica nuclearAstrophysics::Earth and Planetary AstrophysicsImpact parameterParticle Physics - Experiment

description

The measurement of the average lifetime of B hadrons using inclusively reconstructed secondary vertices has been updated using both an improved processing of previous data and additional statistics from new data. This has reduced the statistical and systematic uncertainties and gives \tau_{\mathrm{B}} = 1.582 \pm 0.011\ \mathrm{(stat.)} \pm 0.027\ \mathrm{(syst.)}\ \mathrm{ps.} Combining this result with the previous result based on charged particle impact parameter distributions yields \tau_{\mathrm{B}} = 1.575 \pm 0.010\ \mathrm{(stat.)} \pm 0.026\ \mathrm{(syst.)}\ \mathrm{ps.}

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