Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-09-27
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, revtex, 1 figure
Scientific paper
Hadronic matrix elements of the vector, axial-vector and tensor currents relevant for exclusive rare decays $B\to(\pi,\rho,K,K^*)\,l^+l^-$ induced by the quark transition $b\to d,s$ are analysed using dispersion formulation of the light-cone constituent quark model. The form factors in the decay region are expressed as relativistic double spectral representations through the light-cone wave functions of the initial and final mesons. These form factors are shown to have the correct scaling properties in the limit of heavy-to-heavy and heavy-to-light quark transitions in accordance with QCD. The dependence on the quark-model parameters is studied.
Melikhov Dmitri
Nikitin Nikolai
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