arXiv:hep-ph/0609154·v1·High Energy Physics — Phenomenology
Form factors in B->f0(980) and D->f0(980) transitions from dispersion relations
B. El-Bennich🇫🇷 · O.M.A. Leitner🇫🇷 · B. Loiseau🇫🇷 · J.-P. Dedonder🇫🇷
Abstract
Within the dispersion relation approach we give the double spectral representation for space-like and time-like B-> f_0(980) and D-> f_0(980) transition form factors in the full q^2 range. The spectral densities, being the input of the dispersion relations, are obtained from a triangle diagram in the relativistic quark model.
Comments: Talk given at MESON 2006, Krakow, 9-13 June 2006