Anomalous amplitudes in a thermal bath

Details Anomalous amplitudes in a thermal bath Anomalous amplitudes in a thermal bath

1998-04-30

arxiv.org/abs/hep-ph/9804466v1

Prog.Theor.Phys.Suppl.131:427-437,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, PTPTeX, to appear in the Proceedings of YKIS '97

Scientific paper

10.1143/PTPS.131.427

I review the implications of the axial anomaly in a thermal bath. I assume that the Adler-Bardeen theorem applies at nonzero temperature, so that the divergence of the axial current remains is independent of temperature. Nevertheless, I argue that while the anomaly doesn't change with temperature, ``anomalous'' mesonic couplings do. This is verified by explicit calculations in a low temperature expansion, and near the chiral phase transition.

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