2007/02/28 by Laura Tolós, Laura Tolos, Angels Ramos +1
Physics and Astronomy · #High-Energy Particle Collisions Research #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.1143/ptps.168.635
published as Prog.Theor.Phys.Suppl.168:635-638,2007 · 4 pages, 4 figures, to appear in the proceedings of the Yukawa International Seminar (YKIS2006) on "New Frontiers on QCD", Kyoto, Japan, November 20-December 8, 2006
arxiv created 2007/02/28 · openalex publication_date 2007/03/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The s- and p-wave contributions to the \barK N interaction in dense nuclear matter are obtained using a chiral unitary approach. We perform a self-consistent calculation of the \barK self-energy including Pauli blocking effects, meson self-energies modified by short-range correlations and baryon binding potentials. We find that the on-shell factorization cannot be applied to evaluate the in-medium corrections to p-wave amplitudes. Furthermore, the Λ and Σ develop a mass shift of -30 MeV at saturation density while the Σ* width increases to 80 MeV. We conclude that no deep and narrow \barK bound states could be observed.