dorsal/arxiv
View SchemaExcess of pions with chiral symmetry restoration
| Authors | Chungsik Song, Volker Koch |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9703010 |
| URL | https://arxiv.org/abs/nucl-th/9703010 |
| DOI | 10.1016/S0370-2693(97)00575-3 |
| Journal | Phys.Lett. B404 (1997) 1-7 |
Abstract
We study the effect of the chiral phase transition on pion production in hot hadronic matter. The phase of restored chiral symmetry is characterized by the appearance of the scalar $\sigma$-meson as a chiral partner of the pion as well as by the degeneracy of the vector and axial-vector mesons. We find rapid thermal and chemical equilibration of these degrees of freedom in the symmetric phase. Provided that the chiral transition temperature is not considerably high, the presence of a chirally symmetric phase will result in $\sim 1.6$ times more thermal pions in the final state.
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"abstract": "We study the effect of the chiral phase transition on pion production in hot\nhadronic matter. The phase of restored chiral symmetry is characterized by the\nappearance of the scalar $\\sigma$-meson as a chiral partner of the pion as well\nas by the degeneracy of the vector and axial-vector mesons. We find rapid\nthermal and chemical equilibration of these degrees of freedom in the symmetric\nphase. Provided that the chiral transition temperature is not considerably\nhigh, the presence of a chirally symmetric phase will result in $\\sim 1.6$\ntimes more thermal pions in the final state.",
"arxiv_id": "nucl-th/9703010",
"authors": [
"Chungsik Song",
"Volker Koch"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1016/S0370-2693(97)00575-3",
"journal_ref": "Phys.Lett. B404 (1997) 1-7",
"title": "Excess of pions with chiral symmetry restoration",
"url": "https://arxiv.org/abs/nucl-th/9703010"
},
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