dorsal/arxiv
View SchemaA General Effective Theory for Dense Quark Matter
| Authors | P. T. Reuter, Q. Wang, D. H. Rischke |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0409051 |
| URL | https://arxiv.org/abs/nucl-th/0409051 |
| DOI | 10.1142/9789812702159_0012 |
Abstract
A general effective action for quark matter at nonzero temperature and/or nonzero density is derived. Irrelevant quark modes are distinguished from relevant quark modes, and hard from soft gluon modes, by introducing two separate cut-offs in momentum space, one for quarks, $\Lambda_q$, and one for gluons, $\Lambda_g$. Irrelevant quark modes and hard gluon modes are then exactly integrated out in the functional integral representation of the QCD partition function. Depending on the specific choice for $\Lambda_q$ and $\Lambda_g$, the resulting effective action contains well-known effective actions for hot and/or dense quark matter, for instance the ``Hard Thermal Loop'' (HTL) or the ``Hard Dense Loop'' (HDL) action, as well as the high-density effective theory proposed by Hong and others.
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"abstract": "A general effective action for quark matter at nonzero temperature and/or\nnonzero density is derived. Irrelevant quark modes are distinguished from\nrelevant quark modes, and hard from soft gluon modes, by introducing two\nseparate cut-offs in momentum space, one for quarks, $\\Lambda_q$, and one for\ngluons, $\\Lambda_g$. Irrelevant quark modes and hard gluon modes are then\nexactly integrated out in the functional integral representation of the QCD\npartition function. Depending on the specific choice for $\\Lambda_q$ and\n$\\Lambda_g$, the resulting effective action contains well-known effective\nactions for hot and/or dense quark matter, for instance the ``Hard Thermal\nLoop\u0027\u0027 (HTL) or the ``Hard Dense Loop\u0027\u0027 (HDL) action, as well as the\nhigh-density effective theory proposed by Hong and others.",
"arxiv_id": "nucl-th/0409051",
"authors": [
"P. T. Reuter",
"Q. Wang",
"D. H. Rischke"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1142/9789812702159_0012",
"title": "A General Effective Theory for Dense Quark Matter",
"url": "https://arxiv.org/abs/nucl-th/0409051"
},
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