K- nuclear potentials from in-medium chirally motivated models

0366958 - ÚJF 2012 RIV US eng J - Journal Article
Cieplý, Aleš - Friedman, E. - Gal, A. - Gazda, Daniel - Mareš, Jiří
K- nuclear potentials from in-medium chirally motivated models.
Physical Review. C. Roč. 84, č. 4 (2011), 045206/1-045206/11. ISSN 0556-2813
R&D Projects: GA ČR GA202/09/1441
Institutional research plan: CEZ:AV0Z10480505
Keywords : p-wave interactions * coupled-channel model
Subject RIV: BE - Theoretical Physics
Impact factor: 3.308, year: 2011

A self-consistent scheme for constructing K-nuclear optical potentials from subthreshold in-medium (K) over bar N s-wave scattering amplitudes is presented and applied to analysis of kaonic atoms data and to calculations of K(-) quasibound nuclear states. The amplitudes are taken from a chirally motivated meson-baryon coupled-channel model, both at the Tomozawa-Weinberg leading order and at the next to leading order. Typical kaonic atoms potentials are characterized by a real part -Re V(K-)(chiral) = 85 ± 5 MeV at nuclear matter density, in contrast to half this depth obtained in some derivations based on in-medium (K) over bar N threshold amplitudes.
Permanent Link: http://hdl.handle.net/11104/0201770