Abstract
Antikaons in dense nuclear matter are studied using a chiral unitary approach which incorporates the s- and p-waves of the \( \bar K \) N interaction. We include, in a self-consistent way, Pauli blocking effects, meson self-energies modified by nuclear short-range correlations and baryon binding potentials. We show that the on-shell factorization cannot be applied to evaluate the in-medium corrections to p-wave amplitudes. We also obtain an attractive shift for the Λ and Σ masses of −30 MeV at saturation density while the Σ* width gets sensibly increased to about 80 MeV. The moderate attraction developed by the antikaon does not support the existence of very deep and narrow bound states.
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© 2007 Società Italiana di Fisica / Springer-Verlag
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Tolós, L., Ramos, A., Oset, E. (2007). Chiral approach to antikaons in dense matter. In: Dobado Gonzalez, A., Llanes-Estrada, F.J., Vento, V. (eds) The IVth International Conference on Quarks and Nuclear Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72516-9_11
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DOI: https://doi.org/10.1007/978-3-540-72516-9_11
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-72515-2
Online ISBN: 978-3-540-72516-9
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