Quark Structure and Weak Decays of Heavy Mesons

Details Quark Structure and Weak Decays of Heavy Mesons Quark Structure and Weak Decays of Heavy Mesons

1993-12-16

arxiv.org/abs/hep-ph/9312298v1

Z.Phys.C63:121-130,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

LATEX, 26 pages, 12 tables, 6 figures (appended as uuencoded file but also available as postscript files from the authors), BO

Scientific paper

10.1007/BF01577551

We investigate the quark structure of D and B 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 on B->D*lv semileptonic decay we find for the Cabbibo Kobayashi Maskawa matrix element Vcb=0.036+-0.003. We compare our form factors to the pole dominance hypothesis and the heavy quark limit. For non-leptonic decays we utilize factorization and for B->D*X decays we find a1 = 0.96+-0.05, and a2=0.31+-0.03.

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