6533b823fe1ef96bd127ec45

RESEARCH PRODUCT

Measurement of the inclusive charmless and double-charm B branching ratios

G. LederM. GasparB. ÅSmanV. LefebureV. LefebureD. CrennellF. MandlWojciech KucewiczM. S. BilenkyL.j. CarrollJ. MedboI. LippiJ. H. WickensJ. H. WickensMarco PaganoniFabio CossuttiL. VitaleL. VitaleF. Martinez-vidalAntonios LeisosD. RadojicicGeorgios FanourakisH. PerneggerManfred KrammerP. LutzT. LesiakPatrick JarryG. RinaudoE. I. RosenbergK. KurvinenD. WickeI. Gonzalez CaballeroP. AbreuTord EkelofB. LoerstadKlaus HamacherX. MoreauD. EdsallG. GrosdidierJ. GarciaK. KorcylR. HenriquesAlessandra RomeroA. RuizV. ObraztsovM. A E SchynsL. BuggeA. J. Camacho RozasSandra AmatoD. Z. ToetF. TegenfeldtE. PiottoK. BelousT. SpassovT. TodorovA. DuperrinJ. M. HeuserG. BorisovM. BaubillierV. CanaleR. JanikP. GrisE. CortinaJ. P. GerberA. M. ZaitsevAlexander VodopyanovS. SquarciaGuy WilkinsonF. BianchiH. SaarikkoJuergen ThomasA. PasseriT. TabarelliF. BaraoM. NikolenkoA. SheridanF. Fulda-quenzerStanislav NemecekH. RahmaniP. KubinecI. BozovicN. PukhaevaClara TronconV. VerziD. FassouliotisD. FassouliotisAriella CattaiE. GrazianiR. Mc NultyA. G. FrodesenG. A. ChelkovR. SosnowskiJ. M. LopezMariusz WitekK. MuenichF. NaraghiUgo AmaldiW. De BoerE. ZevgolatakosR. NicolaidouF. LedroitJacques LemonneJacques LemonneJ. M. BrunetH. FoethWinfried MitaroffA. W. BorglandG. SmadjaJ. Cuevas MaestroC. CerrutiO. UllalandLouis LyonsJ. Van EldikK. D. BrandLeif J. JönssonP. VincentJ. E. AugustinM. GuntherY. SacquinN. I. ZiminA. DjannatiB. DalmagneE. K. JohanssonKathy HuetKathy HuetV. ChorowiczRupert LeitnerG. PianaG. MatthiaeAndrei NomerotskiRichard BrennerB. UeberschaerSteinar StapnesMaria Elena PolMaria Elena PolN. VassilopoulosValeriy PozdniakovF. CarenaB. TomeP. AntilogusS. KatsanevasNatale DemariaStefano RagazziD. BertrandD. BertrandJiri ChudobaP. BruckmanMorgan LethuillierS. CabreraB. FranekJosef StraussD. Y. BardinV. MalychevI. StavitskiPer JönssonV. ChabaudM. Espirito SantoC. Martinez-riveroW. VenusDemetrios LoukasF. FormentiG. ValentiA. De AngelisP. CollinsMaurizio CanepaL. TortoraT. J. V. BowcockP. B. RentonF. J. HarrisF. TerranovaT. WlodekT. L. HessingI. KronkvistA. ZalewskaPaul BaillonV. Ruhlmann-kleiderA. N. SisakianF. PierreA. SadovskyAlexander Lincoln ReadW. BoniventoM. SzeptyckaMarc BesanconCarlos LacastaK. StevensonC. GasparVincent HedbergR. PaivaM. ReglerKonstantinos PapageorgiouDaniel BlochJuan FusterA. B. FenyukD. W. LaneM. PernickaDenis GeléB. MarechalA. TomaradzeA. TomaradzeG. C. ZucchelliT. G M MalmgrenH. WahlenG. EkspongMartijn MuldersJ. D. DurandJ. D. DurandM. MichelottoD. StampferA. TonazzoM. VerlatoA. G. OlshevskiAhmimed OuraouT. MyklebustP. A. FischerMarta CalviO.m. KouznetsovP. N. RatoffJesus MarcoG. LenzenR. EhretChiara MariottiU. SchwickerathM. ColomerS. HoorelbekeS. HoorelbekeP. HerquetP. HerquetR. ContriV. LepeltierGeoffrey SmithS. HaiderMartino MargoniPaolo ChecchiaMattias EllertK. H. BecksM. BegalliM. BegalliE. FokitisG. D. AlekseevMaria Roberta MongePaolo RoncheseA. MalekT. PodobnikW. T. MeyerPh. GavilletG. W. Van ApeldoornE. VallazzaE. VallazzaV. KostioukhineM. KoratzinosYu. SedykhS. TzamariasZ. HajdukN. J. KjaerJ. MacnaughtonG. BarkerLaurent MirabitoMarcos DracosB. Jean-marieM. BerggrenL. VenturaT. BurgsmuellerClaire BourdariosM. NieuwenhuizenD. J. HolthuizenC. KreuterP. BuschmannB. MurynB. MurynR. Mc KayAttilio AndreazzaS. HeisingM. Mc CubbinK. HultqvistRafael MarcoN. GhodbaneL.n. GerdyukovOxana SmirnovaP. AnderssonC. CasoN. NeufeldJ. DreesAntonio FerrerK. KarafasoulisManolis DrisJ. GrahlPierre BilloirDietrich LikoEvangelos GazisC. GreenG. TristramS. HahnFrancesca Romana CavalloD. BertiniS. TodorovaA. Di DiodatoM. L. TurluerR. KeranenJ. DolbeauPhilippe CharpentierFrancisco MatorrasChristine KourkoumelisAlberto BenvenutiM. ChapkinD. ReidD. Souza-santosD. Souza-santosP.s.l. BoothChariclia PetridouChariclia PetridouVaclav VrbaD. VilanovaMaciej GórskiWolfgang AdamHans DijkstraT. BuranMarkus ElsingL. ChaussardJ. YiPiotr ZalewskiJ. H. LopesN. NeumeisterDimos SampsonidisU. ParzefallA. FirestoneA. TrombiniH. B. CrawleyM. BattagliaPhillip AllportG. Della RiccaG. Della RiccaG. OraziH. PalkaYu. BelokopytovYu. BelokopytovW. NeumannDaniel TreilleJ. H. CowellV.a. UvarovP. RebecchiUgo GaspariniGianni ZumerleK. A. DreesA. Van LysebettenA. Van LysebettenSandor CzellarA. GalloniM. BigiS. O. HolmgrenI. A. TyapkinJ. P. EngelP. BambadeJ. N. JacksonJ. FayotT. BrenkeJ. RamesO. SolovianovL. S. VertogradovM. V. Castillo GimenezJ. RidkyG. PolokP. KokkiniasC. De ClercqC. De ClercqJ. GuyJosé SaltW. Oberschulte-beckmannY. ArnoudK. GrzelakC. K. LeganS. StanicR. C. ShellardR. C. ShellardJosef HrubecTim AdyePaul DaunceyAmelia MaioCorinne BeratOlga BotnerAllan HallgrenA. BaroncelliA. M. SegarMario SanninoCristian StanescuW. J. MurrayP. BranchiniG. DamgaardC. ParkesErnesto MiglioreP. Van DamH. SchneiderJ. W. LamsaG. TranstromerF. FontanelliP. V. ChliapnikovB. BouquetB. GolobR. LauhakangasA. DeghorainA. DeghorainCarmen GarcíaW.s.c. WilliamsM. A. BizouardR. OravaGunter WolfP. PoropatP. PoropatE. HigonNikita SmirnovF. ScuriF. ScuriV. GraccoReynald PainAndromachi TsirouJ-c. MarinB. ErzenR. GokieliG. EigenC. De La VaissiereO. TchikilevA. M. WetherellDanilo ZavrtanikL. LanceriL. LanceriR. StrubM. DavenportRobert M BrownA. TilquinM. FeindtS. Sánchez NavasAndre AugustinusR. SilvestreP. NissKlaus MoenigFabrizio ParodiPawel JalochaBarry KingR. AlemanyP. DelpierrePaolo PriviteraM. MazzucatoJ. R. MahonJ. R. MahonM. A. HouldenS. Marti I GarciaE. SpiritiG. CosmeR. FrühwirthW. Da SilvaG. VegniP. NegriP. FerrariF. RichardP. ChochulaJ. TimmermansC. MatteuzziTiziano CamporesiS. AlmehedR. ChiericiI. Van VulpenF. HahnP. J. HoltN. G. RedaelliP. SponholzGöran JarlskogMarco BozzoPierre JuillotP. PaganiniE. BoudinovG. MyattL. MundimL. MundimCh. JarlskogA. OnofrePaolo MorettiniJ. G. LokenA. GrefrathP. BeillierePetar AdzicF. WaldnerF. WaldnerKrzysztof NawrockiF. GlegeO. BarringW. D. ApelC. WalckR. ReinhardtYu.a. KhokhlovZ. KrumsteinC. WeiserAndrea PerrottaS. PaianoA. De MinS. FichetM. TyndelD. KnoblauchL. GornL. GornTheodora PapadopoulouG. SajotU. FlagmeyerAnna LipniackaC. JoramMatteo PegoraroR. BarbierP. RosinskyR. MoellerL. K. ResvanisMassimo CacciaVladimir NikolaenkoM. J. BatesTiziano RovelliM. BonesiniToralf Bernhard SkaaliD. GambaF. VerbeureF. VerbeureLuc PapeB. StuguM. GandelmanLuis PeraltaF. KapustaO. YushchenkoA. PulliaR. SekulinJ. J. HernandezM. ChenM. ChenT. MoaMarek SzczekowskiH. KleinK. OsterbergA. MarkouM. A. WinterRichard JacobssonA. PetroliniA. NormandB. De LottoB. De LottoG. CrosettiEvgueni VlasovG. Mc PhersonH. HerrL. G. TkatchevA. SopczakA. NygrenE. C. KatsoufisG. GopalMaarten BoonekampL. De PaulaE. FalkP. RoudeauO. PodobrinO. KlappBorge Svane NielsenS. De BrabandereS. De BrabandereKrzysztof DorobaChiara MeroniPeter KluitF. MazzucatoU. MjoernmarkC. BosioH. T. PhillipsP. SeagerL. Di CiaccioN. N. KhovanskiJ. P. LaugierJ. LibbyOle RøhneM. PimentaB. A. KhomenkoA. StocchiFrancesco NavarriaP. LangefeldF. Simonetto

subject

Nuclear and High Energy PhysicsParticle physicsHadronBranching (polymer chemistry)01 natural sciencesPartícules (Física nuclear)Nuclear physicsPHYSICS0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsDELPHIPhysics010308 nuclear & particles physicsBranching fractionDELPHI DETECTORMICROVERTEX DETECTORLARGE ELECTRON POSITRON COLLIDERLarge Electron–Positron ColliderPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIPARTICLE PHYSICSFísica nuclearImpact parameterDECAYParticle Physics - ExperimentDELPHI DETECTOR; MICROVERTEX DETECTOR; DECAY; PHYSICS

description

The DELPHI experiment at LEP has measured the inclusive charmless B hadron decay branching ratio, the B branching ratio into two charmed particles, and the total number of charmed particles per B decay, using the hadronic Z data taken between 1992 and 1995. The results are extracted from a fit to the b-tagging probability distribution based on the precise impact parameter measurements made using the microvertex detector. The inclusive charmless B branching ratio, including B decays into hidden charm (c (c) over bar), is measured to be 0.033 +/- 0.021. The B branching ratio into two open charmed particles is 0.136 +/- 0.042. The mean number of charmed particles per B decay (including hidden charm) is 1.147 +/- 0.041. After subtracting the B decay branching ratio into hidden charm, the charmless B branching ratio is found to be 0.007 +/- 0.021, compatible with the Standard Model expectation. Models that predict an additional contribution to the charmless B branching ratio of 0.037 or higher are excluded with at least 95% confidence. (C) 1998 Elsevier Science B.V. All rights reserved.

yearjournalcountryeditionlanguage
1998-01-01
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