Chiral approach to antikaon s- and p-wave interactions in dense nuclear matter

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dc.creatorTolos, L.
dc.creatorRamos, A.
dc.creatorOset, E.
dc.date2006-03-10
dc.date2006-06-20
dc.date.accessioned2026-07-07T10:46:56Z
dc.date.available2026-07-07T10:46:56Z
dc.descriptionThe properties of the antikaons in nuclear matter are investigated from a chiral unitary approach which incorporates the s- and p-waves of the ${\bar K}N$ interaction. To obtain the in-medium meson-baryon amplitudes we include, in a self-consistent way, Pauli blocking effects, meson self-energies corrected by nuclear short-range correlations and baryon binding potentials. We pay special attention to investigating the validity of the on-shell factorization, showing that it cannot be applied in the evaluation of the in-medium corrections to the p-wave amplitudes. In nuclear matter at saturation energy, the $Λ$ and $Σ$ develop an attractive potential of about -30 MeV, while the $Σ^*$ pole remains at the free space value although its width gets sensibly increased to about 80 MeV. The antikaon also develops a moderate attraction that does not support the existence of very deep and narrow bound states, confirming the findings of previous self-consistent calculations.
dc.description29 pages, 12 figures, published in Physical Review C
dc.identifierhttps://arxiv.org/abs/nucl-th/0603033
dc.identifierhttp://arxiv.org/abs/nucl-th/0603033
dc.identifierPhys.Rev.C74:015203,2006
dc.identifierdoi:10.1103/PhysRevC.74.015203
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183404
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleChiral approach to antikaon s- and p-wave interactions in dense nuclear matter
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