$π$ and $σ$ mesons at finite temperature and density in the NJL model with dimensional regularization

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dc.creatorInagaki, T.
dc.creatorKimura, D.
dc.creatorKvinikhidze, A.
dc.date2007-12-09
dc.date2008-01-25
dc.date.accessioned2026-07-07T11:39:16Z
dc.date.available2026-07-07T11:39:16Z
dc.descriptionDynamical Symmetry breaking and meson masses are studied in the Nambu-Jona-Lasinio (NJL) model at finite temperature and chemical potential using the dimensional regularization. Since the model is not renormalizable in four space-time dimensions, physical results and parameters depend on the regularization method. Following the imaginary time formalism, we introduce the temperature, $T$ and the chemical potential, $μ$. The parameters in the model are fixed by calculating the pion mass and decay constant in the dimensional regularization at $T=μ=0$.
dc.description28 pages, 9 figures, v2: a few points corrected and references added
dc.identifierhttps://arxiv.org/abs/0712.1336
dc.identifierhttp://arxiv.org/abs/0712.1336
dc.identifierPhys.Rev.D77:116004,2008
dc.identifierdoi:10.1103/PhysRevD.77.116004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199856
dc.subjectHigh Energy Physics - Phenomenology
dc.title$π$ and $σ$ mesons at finite temperature and density in the NJL model with dimensional regularization
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