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The properties of the antikaons in nuclear matter are investigated from achiral unitary approach which incorporates the s- and p-waves of the ${\barK}N$ interaction. To obtain the in-medium meson-baryon amplitudes we include,in a self-consistent way, Pauli blocking effects, meson self-energies correctedby nuclear short-range correlations and baryon binding potentials. We payspecial attention to investigating the validity of the on-shell factorization,showing that it cannot be applied in the evaluation of the in-mediumcorrections to the p-wave amplitudes. In nuclear matter at saturation energy,the $\Lambda$ and $\Sigma$ develop an attractive potential of about -30 MeV,while the $\Sigma^*$ pole remains at the free space value although its widthgets sensibly increased to about 80 MeV. The antikaon also develops a moderateattraction that does not support the existence of very deep and narrow boundstates, confirming the findings of previous self-consistent calculations.Comment: 29 pages, 12 figures, published in Physical Review

physical review c

Chiral approach to antikaon<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:math>- and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>p</mml:mi></mml:mrow></mml:math>-wave interactions in dense nuclear matter

Chiral approach to antikaons- andp-wave interactions in dense nuclear matter