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hep-ph1993
Two Body Non Leptonic Decays of B and B_s Mesons
A. Deandrea, N. Di Bartolomeo, R. Gatto +1
We perform an analysis of two-body non leptonic decays of and mesons in the factorization approximation. We make use of the semileptonic decay amplitudes previously calcu…
hep-ph1993
Effective Lagrangian for Heavy and Light Mesons: Radiative B Decays
R. Casalbuoni, A. Deandrea, N. Di Bartolomeo +2
We make use of the information obtained from semileptonic decays of and mesons, within an effective lagrangian description based on heavy quark theory and on chiral expansi…
hep-ph1993
Hadronic Transitions among Quarkonium States in a Soft-Exchange-Approximation. Chiral Breaking and Spin Symmetry Breaking Processes
R. Casalbuoni, A. Deandrea, N. Di Bartolomeo +3
Although no asymptotic heavy quark spin symmetry, and even more no flavor symmetry, are expected for systems such as quarkonium, a numerical discussion shows that for some processe…