Selection rules for J^PC Exotic Hybrid Meson Decay in Large-N_c

Details Selection rules for J^PC Exotic Hybrid Meson Decay in Large-N_c Selection rules for J^PC Exotic Hybrid Meson Decay in Large-N_c

2003-03-19

arxiv.org/abs/hep-ph/0303170v2

Phys.Rev. D70 (2004) 016004

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, LaTeX. Main paper shortened/rewritten and appendices expanded. Implications for phenomenology of exotic hybrid meson

Scientific paper

10.1103/PhysRevD.70.016004

The coupling of a neutral hybrid {1,3,5...}^-+ exotic particle (or current) to two neutral (hybrid) meson particles with the same J^PC and J=0 is proved to be sub-leading to the usual large-N_c QCD counting. The coupling of the same exotic particle to certain two - (hybrid) meson currents with the same J^PC and J=0 is also sub-leading. The decay of a {1,3,5...}^-+ hybrid to eta pi^0, eta' pi^0, eta' eta, eta(1295) pi^0, pi(1300)^0 pi0, eta(1440) pi^0, a_0(980)^0 sigma or f_0(980) sigma is sub-leading, assuming that these final state particles are (hybrid) mesons in the limit of large N_c.

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