Decays of excited strange mesons in the extended NJL model

Details Decays of excited strange mesons in the extended NJL model Decays of excited strange mesons in the extended NJL model

1998-10-26

arxiv.org/abs/hep-ph/9810470v2

J.Phys.G25:2025-2037,1999; JINRRapidCommun.6-92:5-20,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX 2.09 text, 14 pages, 4 figures; references added, text corrected

Scientific paper

10.1088/0954-3899/25/10/303

A chiral U(3)xU(3) Lagrangian, containing besides the usual meson fields their first radial excitations, is considered. The Lagrangian is derived by bosonization of the Nambu--Jona-Lasinio quark model with separable non-local interactions. The spontaneous breaking of chiral symmetry is governed by the NJL gap equation. The first radial excitations of the kaon, K^* and \phi are described with the help of two form factors. The values for the decay widths of the processes K^*' --> \rho K, K^*' --> K^* \pi, K^*'--> K \pi, \phi' --> K^* K, \phi' --> KK, K' --> K \rho, K' --> K^* \pi and K' --> K 2\pi are obtained in qualitative agreement with the experimental data.

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