Baryonic resonances from Baryon decuplet-meson octet interactions and the exotic resonance S=1, I=1, J(P)=3/2(-)
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Baryonic resonances from Baryon decuplet-meson octet interactions and the exotic resonance S=1, I=1, J(P)=3/2(-)

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Baryonic resonances from Baryon decuplet-meson octet interactions and the exotic resonance S=1, I=1, J(P)=3/2(-)

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Sarkar, S.; Oset Báguena, Eulogio Perfil; Vicente Vacas, Manuel José Perfil
This document is a artículoDate2005

Este documento está disponible también en : http://hdl.handle.net/10550/39469
Using the lowest order chiral Lagrangian we study s-wave interactions of the baryon decuplet with the octet of pseudoscalar mesons. We find two bound states in the flavour SU(3) limit corresponding to the octet and decuplet representations. These are found to split into eight different trajectories in the complex plane when the SU(3) symmetry is broken gradually. Finally, we are able to provide a reasonable description for a good number of 4-star (3-)/(2) resonances listed by the Particle Data Group. In particular, the Xi(1820), the Lambda(1520) and the Sigma(1670) states are well reproduced. We predict a few other resonances and also evaluate the couplings of the observed resonances to the various channels from the residues at the poles of the scattering matrix from where partial decay widths into different channels can be evaluated.

    Sarkar, S. Oset Báguena, Eulogio Vicente Vacas, Manuel José 2005 Baryonic resonances from Baryon decuplet-meson octet interactions and the exotic resonance S=1, I=1, J(P)=3/2(-) Nuclear Physics A 755 665 668
http://dx.doi.org/10.1016/j.nuclphysa.2005.03.091

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