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

Abstract

The 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 $\Lambda$ and $\Sigma$ develop an attractive potential of about -30 MeV, while the ${\Sigma }^{\ast }$ 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.

arXiv comment29 pages, 12 figures, published in Physical Review C

References in corpus (38)

• Chiral Dynamics in Nucleons and Nuclei
• Chiral dynamics in the presence of bound states: kaon-nucleon interactions revisited
• Non perturbative chiral approach to s-wave \bar{K}N interactions
• Chiral Dynamics of the Two Λ(1405) States
• Chiral perturbation theory
• Meson-Meson interaction in a non-perturbative chiral approach
• Soft-core hyperon-nucleon potentials
• N/D Description of Two Meson Amplitudes and Chiral Symmetry
• Chiral Perturbation Theory
• Relativistic chiral SU(3) symmetry, large N_c sum rules and meson-baryon scattering
• Soft-core baryon-baryon potentials for the complete baryon octet
• SU(3) Chiral Dynamics with Coupled Channels: Eta and Kaon Photoproduction
• Chiral Unitary approach to meson-meson and meson-baryon interactions and nuclear applications
• Recent Developments in Chiral Perturbation Theory
• The properties of \bar{K} in the nuclear medium
• Low lying S=-1 excited baryons and chiral symmetry
• Quark mass dependence of s-wave baryon resonances
• Nuclear kaon dynamics
• $S=-1$ Meson-Baryon Unitarized Coupled Channel Chiral Perturbation Theory and the $S_{01}-$ $\Lambda$(1405) and $-\Lambda$(1670) Resonances
• The Juelich hyperon-nucleon model revisited
• Evidence for the two pole structure of the Lambda(1405) resonance
• Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings
• K${}^{-}$-proton scattering and the $\Lambda (1405)$ in dense matter
• Constraints on $\Sigma$ Nucleus Dynamics from Dirac Phenomenology of ${\Sigma }^{-}$ Atoms
• Medium Modified Cross Sections, Temperature and Finite Momentum Effects for Antikaon Production in Heavy-Ion Collisions
• Phi decay in nuclei
• Study of the Sigma-nucleus potential by the (pi^-,K^+) reaction on medium-to-heavy nuclear targets
• Phi meson mass and decay width in nuclear matter
• On the spin, parity and nature of the $\Xi (1620)$ resonance
• Partial wave contributions to the antikaon potential at finite momentum
• Deeply bound levels in kaonic atoms
• Self consistent propagation of hyperons and antikaons in nuclear matter based on relativistic chiral SU(3) dynamics
• Strange tribaryons as Kbar-mediated dense nuclear systems
• Chiral dynamics of p-wave in K^- p and coupled states
• Strength of the $\Sigma$ Single-Particle Potential in Nuclei From Semiclassical Distorted Wave Model Analysis of $({\pi }^{-},K^{+})$ Inclusive Spectrum
• $\Lambda (1520)$ and $\Sigma (1385)$ in the nuclear medium
• Chiral dynamics of $\Sigma$-hyperons in the nuclear medium
• Non-localities and Fermi motion corrections in $K^{-}$ atoms

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