Radiative decays of mesons in the quark model: relativistic and non-relativistic approaches

Details Radiative decays of mesons in the quark model: relativistic and non-relativistic approaches Radiative decays of mesons in the quark model: relativistic and non-relativistic approaches

2003-05-20

arxiv.org/abs/hep-ph/0305216v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, Latex, 1 figure, We have extended the discussion of analytical properties of the amplitude

Scientific paper

Different conclusions about quark nature of f0(980) based on the analysis of data on the reaction phi(1020) -> gamma f0(980) make it necessary to perform detailed comparison of formulae used by various groups for the calculation of partial widths of radiative decays. We carry out a comparative analysis of methods of calculation of radiative decays like phi -> gamma f0 and phi -> gamma eta performed by F.E.Close et al., Phys. Rev. D 65, 092003 (2002), and A.V.Anisovich et al., Eur. Phys. J. A 12, 103 (2001); Yad. Fiz. 65, 523 (2002).

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