dorsal/arxiv
View SchemaEffect of Chiral Symmetry Restoration on Pentaquark $\Theta^+$ Mass and Width at Finite Temperature and Density
| Authors | Xuguang Huang, Xuewen Hao, Pengfei Zhuang |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0409001 |
| URL | https://arxiv.org/abs/nucl-th/0409001 |
| DOI | 10.1016/j.physletb.2004.12.039 |
| Journal | Phys.Lett. B607 (2005) 78-86 |
Abstract
We investigate the effect of chiral phase transition on the pentaquark $\Theta^+$ mass and width at one-loop level of $N\Theta^+K$ coupling at finite temperature and density. The behavior of the mass, especially the width in hadronic medium is dominated by the characteristics of chiral symmetry restoration at high temperature and high density. The mass and width shifts of positive-parity $\Theta^+$ are much larger than that of negative-parity one, which may be helpful to determine the parity of $\Theta^+$ in high energy nuclear collisions.
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"abstract": "We investigate the effect of chiral phase transition on the pentaquark\n$\\Theta^+$ mass and width at one-loop level of $N\\Theta^+K$ coupling at finite\ntemperature and density. The behavior of the mass, especially the width in\nhadronic medium is dominated by the characteristics of chiral symmetry\nrestoration at high temperature and high density. The mass and width shifts of\npositive-parity $\\Theta^+$ are much larger than that of negative-parity one,\nwhich may be helpful to determine the parity of $\\Theta^+$ in high energy\nnuclear collisions.",
"arxiv_id": "nucl-th/0409001",
"authors": [
"Xuguang Huang",
"Xuewen Hao",
"Pengfei Zhuang"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1016/j.physletb.2004.12.039",
"journal_ref": "Phys.Lett. B607 (2005) 78-86",
"title": "Effect of Chiral Symmetry Restoration on Pentaquark $\\Theta^+$ Mass and Width at Finite Temperature and Density",
"url": "https://arxiv.org/abs/nucl-th/0409001"
},
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