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Quark structure and weak decays of heavy mesons

  • Theoretical Physics
  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

We investigate the quark structure ofD andB mesons in the framework of a constituent quark model. To this end, we assume a scalar confining and a one gluon exchange (OGE) potential. The parameters of the model are adopted to reproduce the meson mass spectrum. From a fit to ARGUS and CLEO data onB→D * lv semileptonic decay we find for the Cabbibo Kobayashi Maskawa matrix elementV cb =(0.036±0.003) (1.32 ps/τ B )1/2. We compare our form factors to the pole dominance hypothesis and the heavy quark limit. For non-leptonic decays we utilize factorization and forB→D (*) X decays we finda 1=0.96±0.05, anda 2=0.31±0.03.

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Authors and Affiliations

  1. Institut für Theoretische Kernphysik der Universität Bonn, Nussallee, 14-16, D-53116, Bonn, Germany

    Stefan Resag & Michael Beyer

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  1. Stefan Resag
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  2. Michael Beyer
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Resag, S., Beyer, M. Quark structure and weak decays of heavy mesons. Z. Phys. C - Particles and Fields 63, 121–130 (1994). https://doi.org/10.1007/BF01577551

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  • DOI: https://doi.org/10.1007/BF01577551

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