Resonant decay of parity odd bubbles in hot hadronic matter

Abstract

We investigate the decay of metastable states with broken CP-symmetry which have recently been proposed by Kharzeev, Pisarski and Tytgat to form in hot hadronic matter. We consider the efficiency of the amplification of the ${\eta }^{\prime }$-field via parametric resonance, taking the backreaction into account. For times of the order $t\approx 10fm$, we find a particle density of about $0.7/f{m}^3$ and a correlation length of ${\xi }_{max}\approx 2.5fm$. The corresponding momentum spectra show a non-thermal behaviour.

Comments: 11 pages latex file with 4 gif - figures. Uses elsart.cls (included)