Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-02-12
Phys.Rev. D58 (1998) 034004
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 5 figures, LaTeX (style aps,epsf,prl), minor typos corrected and few references added, final version to appear in Ph
Scientific paper
10.1103/PhysRevD.58.034004
We describe the effective heavy meson lagrangian for S- and P-wave heavy-light mesons in terms of a model based on meson-quark interactions, where mesonic transition amplitudes are represented by diagrams with heavy mesons attached to loops containing heavy and light constituent quarks. The model is relativistic and incorporates the heavy quark symmetries. The universal form factors of the heavy meson transition amplitudes are calculated together with their slopes and compared to existing data and limits. As further applications of the model, strong and radiative decays of D* and B* are considered. The agreement with data is surprisingly good and shows that the model offers a viable alternative to effective meson lagrangians which require a larger number of input parameters.
Bartolomeo Nicola Di
Deandrea Aldo
Gatto Raoul
Nardulli Giuseppe
Polosa Antonio Davide
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