The Rho-Meson as a Collective Excitation

Details The Rho-Meson as a Collective Excitation The Rho-Meson as a Collective Excitation

1994-04-08

arxiv.org/abs/hep-ph/9404242v1

Phys.Lett. B340 (1994) 171-175

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, plain LaTeX

Scientific paper

10.1016/0370-2693(94)01256-3

A model of the rho-meson as a collective excitation of $q\bar{q}$ pairs in a system that obeys the modified Nambu--Jona-Lasinio Lagrangian is proposed. The rho emerges as a dormant Goldstone boson. The origin of the rho-meson mass is understood as a result of spontaneous chiral symmetry breaking. The low-energy dynamics of rho, pi, omega and gamma is consistently described in this new framework. The model accounts for the origin of the celebrated Kawarabayashi--Suzuki--Riazuddin--Fayyazuddin relation.

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