Measurement of Semileptonic Branching Fractions of B Mesons to Narrow D** States

dc.creatorD0 Collaboration
dc.creatorAbazov, V.
dc.date2005-07-10
dc.date.accessioned2026-07-07T11:58:07Z
dc.date.available2026-07-07T11:58:07Z
dc.descriptionUsing the data accumulated in 2002-2004 with the DO detector in proton-antiproton collisions at the Fermilab Tevatron collider with centre-of-mass energy 1.96 TeV, the branching fractions of the decays B -> \bar{D}_1^0(2420) μ^+ ν_μX and B -> \bar{D}_2^{*0}(2460) μ^+ ν_μX and their ratio have been measured: BR(\bar{b}->B) \cdot BR(B-> \bar{D}_1^0 μ^+ ν_μX) \cdot BR(\bar{D}_1^0 -> D*- pi+) = (0.087+-0.007(stat)+-0.014(syst))%; BR(\bar{b}->B)\cdot BR(B->D_2^{*0} μ^+ ν_μX) \cdot BR(\bar{D}_2^{*0} -> D*- π^+) = (0.035+-0.007(stat)+-0.008(syst))%; and (BR(B -> \bar{D}_2^{*0} μ^+ ν_μX)BR(D2*0->D*- pi+)) / (BR(B -> \bar{D}_1^{0} μ^+ ν_μX)\cdot BR(\bar{D}_1^{0}->D*- π^+)) = 0.39+-0.09(stat)+-0.12(syst), where the charge conjugated states are always implied.
dc.descriptionsubmitted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/hep-ex/0507046
dc.identifierhttp://arxiv.org/abs/hep-ex/0507046
dc.identifierPhys.Rev.Lett.95:171803,2005
dc.identifierdoi:10.1103/PhysRevLett.95.171803
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206117
dc.subjectHigh Energy Physics - Experiment
dc.titleMeasurement of Semileptonic Branching Fractions of B Mesons to Narrow D** States
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