Kaonic atoms and in-medium K - N amplitudes II: Interplay between theory and phenomenology

A microscopic kaonic-atom optical potential V-K-((1)) constructed, using the Ikeda Hyodo Weise NLC chiral K - N subthreshold scattering amplitudes constrained by the kaonic hydrogen SIDDHARTA mea surement, and incorporating Pauli correlations within the Waas-Rho-Weise generalization of the EricsonEricson multiple-scattering approach. Good fits to kaonic atom data over the entire periodic table require additionally sizable K -NN-motivated absorptive and dispersive phenomenological terms, in agreemen with our former analysis based on a post-SIDDHARTA in-medium chirally-inspired NLO separable mode by Ciep19 and Smejkal. Such terms are included by introducing a phenomenological potential V-K-((2)) and cou pling it self-consistently to V-K-((1)). Properties of resulting kaonic atom potentials are discussed with specia attention paid to the role of K --nuclear absorption and to the extraction of density-dependent amplitude! representing K- multi-nucleon processes. (C) 2013 Elsevier B.A. All rights reserved.