6533b83afe1ef96bd12a7109
RESEARCH PRODUCT
A measurement of the branching fractions of the b quark into charged and neutral b hadrons
Dimitrios FassouliotisA. OyangurenJalal AbdallahA. Savoy-navarroJ. MasikT. Da SilvaRupert LeitnerM. FeindtW. LiebigTord EkelofP. VerdierP. BruckmanT. J. V. BowcockR. OravaF. PierreVincent HedbergB. CrawleyMarcin KucharczykMattias EllertPeter KluitM. BegalliM. BegalliO. YushchenkoUgo AmaldiA. BallestreroR. SekulinGöran JarlskogK. MuenichW. De BoerB. TomeP. AntilogusJ. RehnL. MundimL. MundimG. EigenV. Ruhlmann-kleiderN. PukhaevaN. PukhaevaN. PukhaevaB. BouquetF. Fulda-quenzerDemetrios LoukasP. D. JohanssonW. D. ApelM. StanitzkiTomasz SzumlakE. GrazianiT. MoaF. CarenaPaolo MorettiniM. ZupanJ. M. BrunetH. FoethG. MyattA. MaekT. AlbrechtC. KourkoumeisL. BerntzonS. O. HolmgrenJuan FusterFilipe VelosoValeriy PozdniakovR. Alemany-fernandezG. LederClara TronconPer JönssonOliver PassonAntonio FerrerM. RiveroM. BlomKrzysztof NawrockiStavros MaltezosB. ÅSmanP. BambadeP.s.l. BoothL. JungermannL. RamlerY. ArnoudAntonio OnofreA. MarkouM. BrackoM. BrackoA. De AngelisA. De AngelisP. CollinsJesus MarcoM. A. WinterG. SmadjaAndre SopczakRichard BrennerJ. Van EldikA. TonazzoA. G. OlshevskiD. CrennellB. GolobB. GolobDaniel BlochKlaus HamacherS. MorenoU. SchwickerathPatrick JarryF. MandlA. PetroliniB. De LottoB. De LottoAhmimed OuraouPaulo J. S. GonçalvesP. Van DamF. HaulerP. J. HoltE. Ben-haimV. LepetierN. I. ZiminW. Da SilvaWolfgang AdamK. HultqvistA. ZalewskaRafael MarcoA. SokolovU. MuellerW. A. MitaroffDietrich LikoA. Van LysebettenA. Van LysebettenM. TobinW. T. MeyerA. BehrmannMaria Elena PolMaria Elena PolG. PolokS. KatsanevasF. RichardC. MatteuzziD. MoraesP. BuschmannB. MurynJ. P. PalaciosH. HerrN. AnjosL. BuggeA. AndreazzaL. G. TkatchevF. LedroitErnesto MiglioreP. RentonBarry KingD. Y. BardinDaniel TreilleM. BerggrenM. NassiakouT. AlderweireldT. AlderweireldJ. D'hondtJ. D'hondtM. NikolenkoMarco BattagliaA. C. TaffardD. WickeI. A. TyapkinJ. RidkyMarkus ElsingJavier CuevasS. TodorovovaT. AllmendingerC. ParkesG. WilkinsonJ. TimmermansB. MarechalM. PimentaFrancesco NavarriaPablo TortosaA. ZintchenkoRosy NicolaidouTiziano RovelliMichal BlujG. BorisovA. N. SisakianFabio CossuttiFabio CossuttiV. VerziMarta CalviM. MazzucatoA. SadovskyD. VilanovaM. HenneckeV. ZhuravlovCorinne BeratOlga BotnerD. RyabtchikovP. KokkiniasJ. MontenegroIgor BoykoT. LesiakPaul BaillonAlexander Lincoln ReadAgnieszka Oblakowska-muchaM. SzeptyckaMarc BesanconL. SalmiFrancisco MatorrasJ. HoffmanJ. DalmauCarmen GarcíaNuno Filipe CastroL. PieriDaniel JeansV. ObraztsovS. TzamariasKlaus MoenigFabrizio ParodiJ. H. WickensJ. H. WickensMarco PaganoniR. MongeM. A. HouldenU. KerzelF. TegenfeldtRoberto ChiericiKrzysztof DorobaChiara MeroniL. VitaleL. VitaleC. Martinez-riveroMartijn MuldersBorut Paul KerševanBorut Paul KerševanBorut Paul KerševanF. MazzucatoGeorgios FanourakisMartino MargoniE. FokitisU. MjoernmarkNikolaos P. MastroyiannopoulosDiego RodriguezJosef StraussM. Espirito SantoW. VenusP. V. ChliapnikovLuc PapeL. Di CiaccioH. WahlenEvangelos GazisS. AskJ. GuyK. H. BecksG. VegniG. KernelG. KernelGareth J. BarkerJ. C. MarinV. PerepelitsaI. Van VulpenE. I. RosenbergPhillip AllportG. Della RiccaG. Della RiccaGuillelmo Gomez-ceballosJosé SaltDanilo ZavrtanikDanilo ZavrtanikR. GokieliR. GokieliR. GokieliJ. FernandezSofia AndringaChiara MariottiE. BrodetT. MyklebustFrancesca Romana CavalloR. ContriNicola AmapaneC. De ClercqC. De ClercqW. J. MurrayManolis DrisAlberto BenvenutiAndrea PerrottaFabrizio FerroR. Mc NultyP. TyapkinTheodora PapadopoulouTiziano CamporesiG. CosmePetar AdzicR. ReinhardtC. WeiserT. TabarelliP. RebecchiJacques LemonneJacques LemonneA. J. WashbrookS. HaugP. AbreuA. KiiskinenSandra AmatoT. PodobnikT. PodobnikO.m. KouznetsovM. SiebelPaolo ChecchiaPh. GavilletJ. MacnaughtonS. U. ChungM. ChapkinVaclav VrbaPiotr ZalewskiV.a. UvarovJ. N. JacksonJ. RamesJ. PiedraPaolo RoncheseN. J. KjaerE. AnashkinNektarios BenekosG. TristramJ. H. LopesPh. CharpentierPetr TravnicekM. MochK. GrzelakAllan HallgrenGiovanni ValentiAntonio BaroncelliH. PalkaM. BaubillierAchille StocchiJ. W. LamsaV. CanaleMarco CostaE. PiottoG. GrosdidierL. LyonsAlessandra RomeroKeith HamiltonUlrich ParzefallD. BertrandD. BertrandC. HaagN. Van RemortelN. Van RemortelR. SosnowskiJ. E. AugustinJiri ChudobaV. PoireauA. PasseriL. LeinonenK. CieslikOxana SmirnovaM. L. TurluerD. ReidJ. M. LopezZ. KrumsteinS. PaianoA. De MinU. FlagmeyerP. PoropatP. PoropatAndre AugustinusA. SegarN. De MariaAnna LipniackaC. JoramJ. DreesJ. DreesR. BarbierP. LutzM. TrochimczukM. BonesiniT. SpassovM. WitekF. KapustaB. StuguM. GandelmanLuis PeraltaA. PulliaNathalie BessonMarek SzczekowskiK. OsterbergA. Di SimoneE. C. KatsoufisMaarten BoonekampL. De PaulaP. RoudeauE. K. Johanssonsubject
QuarkParticle physicsNuclear and High Energy PhysicsMesonElectron–positron annihilationHadronNuclear TheoryFOS: Physical sciencesLIFETIMEBranching (polymer chemistry)01 natural sciencesBottom quarkOmegaHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsNuclear ExperimentZ-DECAYSDELPHIPhysicsBARYONS010308 nuclear & particles physicsPhysicsHigh Energy Physics::PhenomenologyLEPMESONSLARGE ELECTRON POSITRON COLLIDERBaryonPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIZ-DECAYS; LIFETIME; BARYONS; MESONS; LEPPARTICLE PHYSICSHigh Energy Physics::ExperimentParticle Physics - Experimentdescription
The production fractions of charged and neutral b-hadrons in b-quark events from Z0 decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, based on a neural network, to estimate the charge of the weakly-decaying b-hadron by distinguishing its decay products from particles produced at the primary vertex. From the data taken in the years 1994 and 1995, the fraction of bbar-quarks fragmenting into positively charged weakly-decaying b-hadrons has been measured to be: f^+ = (42.09 +/- 0.82 (stat.) +/- 0.89 (syst.))%. Subtracting the rates for charged Xibar_b^+ and Omegabar_b^+ baryons gives the production fraction of B^+ mesons: f_Bu = (40.99 +/- 0.82 (stat.) +/- 1.11 (syst.))%.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-01-01 |