arXiv:hep-ph/0102189·v2·High Energy Physics — Phenomenology
The omega meson at high temperatures
R.A. Schneider🇩🇪 · W. Weise (Munich, Tech. U.)🇩🇪
Abstract
The decays of the omega meson in a heat bath of thermally excited pions is studied within the framework of real-time thermal field theory using an appropriate effective Lagrangian. We show that the omega meson spectrum broadens considerably at temperatures T > 100 MeV, primarily because of omega pi -> pi pi reactions in the thermal environment.
Comments: 7 pages, 2 figures; reference and paragraph added; version to appear in Phys. Lett. B