Anomalous decay of pion and eta at finite temperature

Details Anomalous decay of pion and eta at finite temperature Anomalous decay of pion and eta at finite temperature

2004-03-25

arxiv.org/abs/hep-ph/0403263v2

Phys.Rev. C70 (2004) 048202

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 4 figures, PRC version

Scientific paper

10.1103/PhysRevC.70.048202

We study the anomalous decays $\pi^0, \eta \to\gamma\gamma$ in the framework of the three--flavor Nambu--Jona-Lasinio [NJL] model at finite temperature. The similarities and differences between these results and those obtained at zero temperature and finite density are discussed. In both cases the lifetimes of these mesons decrease significantly at the critical point, although this might not be sufficient to observe enhancement of these decays in heavy-ion collisions.

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