Search results for "semileptonic Bs-meson decay"

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Measurement of the semileptonic branching fraction of the B_{s} meson

2012

We report a measurement of the inclusive semileptonic branching fraction of the B_s meson using data collected with the BaBar detector in the center-of-mass (CM) energy region above the Upsilon(4S) resonance. We use the inclusive yield of phi mesons and the phi yield in association with a high-momentum lepton to perform a simultaneous measurement of the semileptonic branching fraction and the production rate of B_s mesons relative to all B mesons as a function of CM energy. The inclusive semileptonic branching fraction of the B_s meson is determined to be B(B_s to l nu X)=9.5 (+2.5/-2.0)(stat)(+1.1/-1.9)(syst)%, where l indicates the average of e and mu.

Nuclear and High Energy PhysicsParticle physicssemileptonic branching fractionMesonHigh Energy Physics::Latticesemileptonic branching fraction B_s mesonFOS: Physical sciences01 natural sciencesResonance (particle physics)semileptonic Bs-meson decaysHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Mesons (Nuclear physics)B mesonSDG 7 - Affordable and Clean EnergyMesons (Física nuclear)010306 general physicsNuclear Experiment14.40.Nd 13.20.HePhysics/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy010308 nuclear & particles physicsBranching fractionLeptons (Física nuclear)High Energy Physics::PhenomenologyBABAR detectorbranching fraction measurementHEPPACS: 14.40.Nd 13.20.HeBaBar detector at SLAC; semileptonic Bs-meson decays; branching fraction measurementLeptons (Nuclear physics)Yield (chemistry)BaBarB_s mesonHigh Energy Physics::ExperimentBaBar detector at SLACsemileptonic Bs-meson decayLeptonProduction rate
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