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Measurement of semileptonic branching fractions of B mesons to narrow D-** states - art. no. 1711803

Abazov, VM; Abbott, B; Abolins, M; Acharya, BS; Adams, M; Adams, T; Agelou, M; ... Zverev, EG; + view all (2005) Measurement of semileptonic branching fractions of B mesons to narrow D-** states - art. no. 1711803. PHYS REV LETT , 95 (17) , Article 171803. 10.1103/PhysRevLett.95.171803. Green open access

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Abstract

Using the data accumulated in 2002-2004 with the D0 detector in proton-antiproton collisions at the Fermilab Tevatron collider with a center-of-mass energy of 1.96 TeV, the branching fractions of the decays B ->(D) over bar (0)(1)(2420)mu(+)nu(mu)X and B ->(D) over bar (*0)(2)(2460)mu(+)nu(mu)X and their ratio have been measured: B (b) over bar -> B)xB(B -> (D) over bar (0)(1)mu(+)nu(mu)X)xB((D) over bar (0)(1)-> D(*-)pi(+))=[0.087 +/- 0.007(stat)+/- 0.014(syst)]%; B((b) over bar -> B)xB(B ->(D) over bar (*0)(2)mu(+)nu(mu)X)xB((D) over bar (*0)(2)-> D(*-)pi(+))=[0.035 +/- 0.007(stat)+/- 0.008(syst)]% and [B(B ->(D) over bar (*0)(2)mu(+)nu(mu)X)xB((D) over bar (*0)(2)-> D(*-)pi(+))]/[B(B ->(D) over bar (0)(1)mu(+)nu(mu)X)xB((D) over bar (0)(1)-> D(*-)pi(+))]=0.39 +/- 0.09(stat)+/- 0.12(syst), where the charge conjugated states are always implied.

Type: Article
Title: Measurement of semileptonic branching fractions of B mesons to narrow D-** states - art. no. 1711803
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.95.171803
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.95.171803
Language: English
Additional information: © 2005 The American Physical Society
Keywords: EFFECTIVE FIELD-THEORY, EXCITED CHARM MESONS, HEAVY QUARKS, DECAYS, PREDICTIONS, PHYSICS
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Cell and Developmental Biology
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/1374262
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