Determination of $\mathrm{|V_{cb}|}$ from the semileptonic decay B $^0 \rightarrow$ D $^{*-} \ell^+ \nu$

Abstract

Link to publication Citation for published version (APA):Abreu, P., Agasi, E. E., Boudinov, E., Hao, W., Holthuizen, D. J., Kluit, P. M., ... van Eldik, J. E. (1996). Determination of |V_{cb}| from the semileptonic decay $B^0 \rightarrow D^{*-}l^+ \nu. Zeitschrift für Physik. C, Particles and Fields, 71, 539. DOI: 10.1007/s002880050202 General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible.Download date: 12 May 2018 Z. Phys. C 71, 539-553 (1996) ZEITSCHRIFT FÜR PHYSIK C Abstract. Semileptonic decays B→ D * − + νX were selected from a sample of 3.1 million hadronic Z decays collected by the DELPHI detector at LEP. A topological search for semileptonic B decays to resonant and non-resonant D * − π + states was performed and the ratio of the branching fractions:Br ( The value of |V cb | was computed using theoretical calculations of F (q 2 max ), giving:|V cb | = (38.9 ± 2.0(stat) ± 2.6(syst) ± 1.7(theory)) · 10 −3 .The total branching fraction Br(B 0 → D * − + ν) was determined to be:Br(B 0 → D * − + ν) = (5.52 ± 0.17(stat) ± 0.68(syst))%.