Resonant decay of parity odd bubbles in hot hadronic matter

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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

Scientific paper

10.1016/S0370-2693(00)00636-5

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 $\eta'$-field via parametric resonance, taking the backreaction into account. For times of the order $t\approx 10 fm$, we find a particle density of about $0.7/fm^3$ and a correlation length of $\xi_{max}\approx 2.5 fm$. The corresponding momentum spectra show a non-thermal behaviour.

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