Resonant decay of parity odd bubbles in hot hadronic matter

Ahrensmeier, D.; Baier, R.; Dirks, M.

doi:10.1016/S0370-2693(00)00636-5

Resonant decay of parity odd bubbles in hot hadronic matter

May, 2000

11 pages

Published in:

Phys.Lett.B 484 (2000) 58-63

e-Print:

hep-ph/0005051 [hep-ph]

DOI:

10.1016/S0370-2693(00)00636-5

Report number:

BI-TP-2000-12

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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'

-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.

11.10.Wx
12.38.Mh
12.39.Fe
Hot hadronic matter
Metastable CP-odd bubbles
Parametric resonance
matter: hadronic
critical phenomena
CP: violation
production: bubble

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