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Low-momentum Pion Enhancement Induced by Chiral Symmetry Restoration

Pengfei Zhuang
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Abstract

The thermal and nonthermal pion production by sigma decay and its relation with chiral symmetry restoration in a hot and dense matter are investigated. The nonthermal decay into pions of sigma mesons which are popularly produced in chiral symmetric phase leads to a low-momentum pion enhancement as a possible signature of chiral phase transition at finite temperature and density.

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Pengfei Zhuang. 2003-05-20. Low-momentum Pion Enhancement Induced by Chiral Symmetry Restoration. https://doi.org/10.1142/s0217751x04016490

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