The effect of hadronization on the instabilities in an expanding parton plasma
1 Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 19,
D-69120 Heidelberg, Germany
2 Physics Department, Tsinghua University, Beijing 100084, P.R. China
Received: 11 January 1999 Communicated by W. Weise
The growth rate for instabilities in an expanding parton plasma is investigated by using a quasiparticle transport model including hadronization. The coupled Boltzmann equations for partons and pions with time dependent mean field masses and source terms are solved in the Bjorken boost invariant picture. Hadronization modifies the known instability in the parton plasma created by the mean field in two ways: In the beginning, hadronization increases the rate of instability, but then when the hadronization is dominating the time evolution.
25.75.-q Relativistic heavy-ion collisions - 12.38.Mh Quark-gluon plasma