Publication: Global fit of pi-pi and pi-K elastic-scattering in chiral perturbation-theory with dispersion-relations
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1993-06-01
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American Physical Society
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Abstract
We apply the one-loop results of the SU(3)L X SU(3)R chiral perturbation theory supplemented with the inverse-amplitude method to fit the available experimental data on pipi and piK scattering. With essentially only three parameters we describe accurately data corresponding to six different channels: namely, (I,J) = (0,0), (2,0), (1,1), (1/2, 0), (3/2, 0), and (1/2, 1). In addition we reproduce the first resonances of the (1, 1) and (1/2, 1) channel with the right mass corresponding to the rho and the K* (892) particles.
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© 1993The American Physical Society.
This work has been partially supported by the Ministerio de Educacion y Ciencia (Spain) (CICYT AEN 90-0034)
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