FORM FACTORS IN B → f0(980) AND D → f0(980) TRANSITIONS FROM DISPERSION RELATIONS

/ Authors

B. El-Bennich, O. Leitner, B. Loiseau, J. Dedonder

/ Abstract

Within the dispersion relation approach we give the double spectral representation for space-like and time-like B → f0(980) and D → f0(980) transition form factors in the whole q2 range. The spectral densities, being the input of the dispersion relations, are obtained from a triangle diagram of relativistic constituent quarks.

Journal: International Journal of Modern Physics A

DOI: 10.1142/S0217751X07036026