%0 Journal Article
%T Low-lying even-parity meson resonances and spin-flavor symmetry
%A Garcia-Recio, C.
%A Geng, L. S.
%A Nieves, J.
%A Salcedo, L. L.
%J Physical Review D
%D 2011
%V 83
%N 1
%I Amer Physical Soc
%@ 1550-7998
%G English
%F Garcia-Recio_etal2011
%O ISI:000286765100008
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=585), last updated on Wed, 13 Apr 2011 11:54:07 +0000
%X Based on a spin-flavor extension of chiral symmetry, a novel s-wave meson-meson interaction involving members of the rho nonet and of the pi octet is introduced, and its predictions are analyzed. The starting point is the SU(6) version of the SU(3)-flavor Weinberg-Tomozawa Lagrangian. SU(6) symmetry-breaking terms are then included to account for the physical meson masses and decay constants in a way that preserves (broken) chiral symmetry. Next, the T-matrix amplitudes are obtained by solving the Bethe-Salpeter equation in a coupled-channel scheme, and the poles are identified with their possible Particle Data Group counterparts. It is shown that most of the low-lying even-parity Particle Data Group meson resonances, especially in the J(P) = 0(+) and 1(+) sectors, can be classified according to multiplets of SU(6). The f(0)(1500), f(1)(1420), and some 0(+)(2(++)) resonances cannot be accommodated within this scheme, and thus they would be clear candidates to be glueballs or hybrids. Finally, we predict the existence of five exotic resonances (I >= 3/2 and/or vertical bar Y vertical bar = 2) with masses in the range of 1.4-1.6 GeV, which would complete the 27(1), 10(3), and 10(3)* multiplets of SU(3) circle times SU(2).
%R 10.1103/PhysRevD.83.016007
%U http://arxiv.org/abs/arXiv:1005.0956
%U https://doi.org/10.1103/PhysRevD.83.016007
%P 016007-30pp