Decay Constants and Semileptonic Form Factors of Pseudoscalar Mesons

Details Decay Constants and Semileptonic Form Factors of Pseudoscalar Mesons Decay Constants and Semileptonic Form Factors of Pseudoscalar Mesons

1999-10-21

arxiv.org/abs/hep-ph/9910434v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages LaTeX; based on talk given at the "QFTHEP '99 Workshop", Moscow, May 27- June 2, 1999

Scientific paper

A relativistic constituent quark model is adopted to give an unified description of the leptonic and semileptonic decays of pseudoscalar mesons (\pi, K, D, D_s, B, B_s). The calculated leptonic decay constants and form factors are found to be in good agreement with available experimental data and the results of other approaches. Eventually, the model is found to reproduce the scaling behaviours of spin-flavor symmetry in the heavy-quark limit.

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