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26 April 2024

» arxiv » nucl-th/9902001

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Recent progress on the chiral unitary approach to meson meson and meson baryon interactions
E. Oset ; J.A. Oller ; J.R. Pelaez ; A. Ramos ; H.C. Chiang ; F. Guerrero ; S. Hirenzaki ; T.S.H. Lee ; E. Marco ; J.C. Nacher ; Y. Okumura ; A. Parreno ; H. Toki ; M. Vicente-Vacas ;
Date:	1 Feb 1999
Journal:	Nucl.Phys. A670 (2000) 111-118
Subject:	nucl-th
Abstract:	We report on recent progress on the chiral unitary approach, analogous to the effective range expansion in Quantum Mechanics, 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. Applications to physical processes so far unsuited for a standard chiral perturbative approach are presented. Results for the extension of these ideas to the meson baryon sector are discussed, together with applications to kaons in a nuclear medium and $K^-$ atoms.
Source:	arXiv, nucl-th/9902001
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