Pion Production in Heavy-ion Collisions in the 1 A GeV region

Abstract

Within the framework of the improved isospin dependent quantum molecular dynamics (ImIQMD) model, the pion emission in heavy-ion collisions in the region 1 A GeV is investigated systematically, in which the pion is considered to be mainly produced by the decay of resonances $△$(1232) and N*(1440). The in-medium dependence and Coulomb effects of the pion production are included in the calculation. Total pion multiplicity and ${\pi }^{-}/{\pi }^{+}$ yields are calculated for the reaction ${}^{197}$Au+${}^{197}$Au in central collisions for selected Skyrme parameters SkP, SLy6, Ska, SIII and compared them with the measured data by the FOPI collaboration.

9 pages, 5 figures

References in corpus (2)

• Systematics of pion emission in heavy ion collisions in the 1A GeV regime
• Dynamical analysis on heavy-ion fusion reactions near Coulomb barrier