Temperature-dependent cross sections for capital pi phi and rho phi nonresonant reactions in hadronic matter

With a potential of which the large-distance part reflects lattice gauge results and of which the short-distance part is given by one gluon exchange plus perturbative one- and two-loop corrections, the Schroedinger equation brings about temperature dependence of meson masses and mesonic quark-antiquark relative-motion wave functions. The ground-state meson masses drop with increasing temperature. The transition amplitude calculated from the potential, the meson masses and the wave functions gives temperature-dependent cross sections for the five nonresonant reactions capital pi phi arrow right KK* (or K * K), capital pi phi arrow right K * K*, rho phi arrow right KK, rho phi arrow right KK* (or K * K) and rho phi arrow right K*K*. The numerical temperature-dependent cross sections are parametrized. The peak cross section of either capital pi phi arrow right KK* or capital pi phi K * K* increases from T = 0 to T = 0.75T sub(c) and decreases with further increasing temperature. The cross section for rho phi arrow right KK, rho phi arrow right KK* or rho phi arrow right K * K* has a decreasing trend while the temperature increases from 0.75T sub(c).