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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
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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.

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B. El-Bennich, O. M. A. Leitner, B. Loiseau, J. -P. Dedonder. 2006-09-18. Form factors in B->f0(980) and D->f0(980) transitions from dispersion relations. https://doi.org/10.1142/s0217751x07036026

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