Dispersion relations at finite temperature and density for nucleons and pions

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dc.creatorHurtado, Rafael
dc.creatorMorales, John
dc.creatorQuimbay, Carlos
dc.date1999-11-23
dc.date.accessioned2026-07-07T04:08:54Z
dc.date.available2026-07-07T04:08:54Z
dc.descriptionWe calculate the nucleonic and pionic dispersion relations at finite temperature T and non-vanishing chemical potentials $(μ_f)$ in the context of an effective chiral theory that describes the strong and electromagnetic interactions for nucleons and pions. The dispersion relations are calculated in the broken chiral symmetry phase, where the nucleons are massive and pions are taken as massless. The calculation is performed at lowest order in the energy expansion, working in the framework of the real time formalism of thermal field theory in the Feynman gauge. These one-loop dispersion relations are obtained at leading order with respect to T and $μ_f$. We also evaluate the effective masses of the quasi-nucleon and quasi-pion excitations in thermal and chemical conditions as the ones of a neutron star.
dc.descriptionLaTeX File, 10 pages, 2 Postscript figures
dc.identifierhttps://arxiv.org/abs/hep-ph/9911451
dc.identifierhttp://arxiv.org/abs/hep-ph/9911451
dc.identifierActa Phys.Hung.New Ser.Heavy Ion Phys. 11 (2000) 373-381
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/49654
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDispersion relations at finite temperature and density for nucleons and pions
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