%0 Journal Article
%T Odd-parity light baryon resonances
%A Gamermann, D.
%A Garcia-Recio, C.
%A Nieves, J.
%A Salcedo, L. L.
%J Physical Review D
%D 2011
%V 84
%N 5
%I Amer Physical Soc
%@ 1550-7998
%G English
%F Gamermann_etal2011
%O WOS:000294404700008
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=843), last updated on Wed, 18 Jan 2012 10:50:25 +0000
%X We use a consistent SU(6) extension of the meson-baryon chiral Lagrangian within a coupled channel unitary approach in order to calculate the T matrix for meson-baryon scattering in the s wave. The building blocks of the scheme are the pi and N octets, the rho nonet and the UDELTA; decuplet. We identify poles in this unitary T matrix and interpret them as resonances. We study here the nonexotic sectors with strangeness S = 0, -1, -2, -3 and spin J = 1/2, 3/2 and 5/2. Many of the poles generated can be asociated with known N, UDELTA;, sigma, Lambda, Xi and Omega resonances with negative parity. We show that most of the low-lying three and four star odd-parity baryon resonances with spin 1/2 and 3/2 can be related to multiplets of the spin-flavor symmetry group SU(6). This study allows us to predict the spin-parity of the Xi (1620), Xi (1690), Xi (1950), Xi (2250), Omega (2250) and Omega (2380) resonances, which have not been determined experimentally yet.
%R 10.1103/PhysRevD.84.056017
%U http://arxiv.org/abs/1104.2737
%U https://doi.org/10.1103/PhysRevD.84.056017
%P 056017-30pp