Two photon decay of ${\pi }^0$ and $\eta$ at finite temperature and density

Abstract

A comparative study of the anomalous decays ${\pi }^0,\eta \to \gamma \gamma$, at finite temperature and at finite density, is performed in the framework of the three--flavor Nambu--Jona-Lasinio. The similarities and differences between both scenarios 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.

arXiv comment5 pages, 1 figure. Talk given at Strange Quark Matter 2004, Cape Town, South Africa, 15-20 September, 2004

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Cited by in corpus (1)

• Mesons and diquarks in neutral color superconducting quark matter with $\beta$-equilibrium