Relativistic short-range correlation effects on the pion dynamics in nuclear matter

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dc.creatorLeinson, L. B.
dc.creatorPerez, A.
dc.date2003-07-07
dc.date2003-10-03
dc.date.accessioned2026-07-07T05:39:39Z
dc.date.available2026-07-07T05:39:39Z
dc.descriptionReplicated theoretical attempts of relativistic approaches to the pion self-energy in nuclear matter yield unphysical pion spectra. We demonstrate the crucial dependence of the calculated pion spectra on the correct relativistic accounting for the short-range correlation effects on the pion self-energy in the medium. To do this, we simulate the short-range interactions by phenomenological contact terms in the relativistic Lagrangian density, and derive the pion self-energy by carefully taking into account the relativistic kinematics. The obtained spectrum for the pion-like excitations in cold nuclear matter shows physically meaningful branches, in contrast to those obtained before by different authors by the use of simplified relativistic approaches to the short-range correlations.
dc.description21 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/nucl-th/0307025
dc.identifierhttp://arxiv.org/abs/nucl-th/0307025
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/82040
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRelativistic short-range correlation effects on the pion dynamics in nuclear matter
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