ρ-A 1 mixing in pion induced reaction

Abstract

The dynamical evolution of the heavy-ion collision is described by a transport equation of QMD type evolving nucleons, N* and Δ resonances, Λ′s and Σ baryons, furthermore, π′s, η′s, ρ′s, σ′s, ω′s and kaons with their isospin degrees of freedom. The input cross sections and resonance parameters of the model are fitted to the available nucleon-nucleon and pion-nucleon cross sections. One consequence of the chiral restoration is the mixing of parity partners. We look for a possible signature of the mixing of vector and axialvector mesons in heavy-ion collisions. We suggest an experimental method for its observation.