SU(3) Chiral approach to meson and baryon dynamics
E. Oset, A. Hosaka, J. C. Nacher, M. Oka, J. A. Oller, A. Parreno, J. R. Pelaez, A. Ramos, H. Toki
Abstract
We report on recent progress on the chiral unitary approach, which is shown to have a much larger convergence radius than ordinary chiral perturbation theory, allowing one to reproduce data for meson meson interaction up to 1.2 GeV and meson baryon interaction up to the first baryonic resonances. Applications to physical processes so far unsuited for a standard chiral perturbative approach are presented, concretely the K- pΛ(1405)γreaction and the N (1535)N(1535)πand ηcouplings.
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