arXiv:hep-ph/0508264·v2·High Energy Physics — Phenomenology
Scalar sigma meson at finite temperature in nonlocal quark model
D. Blaschke · Yu. L. Kalinovsky · A. E. Radzhabov · M. K. Volkov
Abstract
Properties and temperature behavior of pi and sigma bound states are studied in the framework of the nonlocal model with a separable interaction kernel based on the quark Dyson-Schwinger and the meson Bethe-Salpeter equations. M_pi(T), f_pi(T), M_sigma(T) and Gamma_{sigma -> pi pi}(T) are considered above and below the deconfinement and chiral restoration transitions.
Comments: 8 pages, 2 figures, Talk at the Round Table Discussion "Searching for the mixed phase of strongly interacting matter at the JINR Nuclotron", JINR, Dubna, July 7 - 9, 2005. Submitted to Phys.Part.Nucl.Lett