dorsal/arxiv
View SchemaRepulsive force by vector mesons and quark-hadron phase transition
| Authors | Hiroaki Kouno |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0610015 |
| URL | https://arxiv.org/abs/nucl-th/0610015 |
| Journal | Soryushiron Kenkyu (Kyoto) 114 (2006), C123-C125. |
Abstract
Using a phenomenological model with vector-type interactions, we discuss a role of repulsive force in the quark-hadron phase transition at high density. For realization of the quark phase at high density, strong vector coupling is needed in the hadron phase, while it is forbidden in the quark phase. For the quark-phase, a NJL-type model with a multi-quark interaction is investigated. We show that, in this model, the restoration of chiral symmetry decreases effective vector coupling and the quark phase is realized at high density, even if we have strong vector coupling at low density. In this model, the strong coupling in the hadron phase is induced by the chiral symmetry breaking.
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"abstract": "Using a phenomenological model with vector-type interactions, we discuss a\nrole of repulsive force in the quark-hadron phase transition at high density.\nFor realization of the quark phase at high density, strong vector coupling is\nneeded in the hadron phase, while it is forbidden in the quark phase. For the\nquark-phase, a NJL-type model with a multi-quark interaction is investigated.\nWe show that, in this model, the restoration of chiral symmetry decreases\neffective vector coupling and the quark phase is realized at high density, even\nif we have strong vector coupling at low density. In this model, the strong\ncoupling in the hadron phase is induced by the chiral symmetry breaking.",
"arxiv_id": "nucl-th/0610015",
"authors": [
"Hiroaki Kouno"
],
"categories": [
"nucl-th",
"hep-ph"
],
"journal_ref": "Soryushiron Kenkyu (Kyoto) 114 (2006), C123-C125.",
"title": "Repulsive force by vector mesons and quark-hadron phase transition",
"url": "https://arxiv.org/abs/nucl-th/0610015"
},
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