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

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• 作者：E. Friedman ; A. Gal ; ^{avragal@vms.huji.ac.il}
• 关键词：Meson&ndash ; nuclear multiple scattering ; Meson&ndash ; baryon coupled channel chiral models ; Kaonic atoms
• 刊名：Nuclear Physics A
• 出版年：2013
• 出版时间：1 February, 2013
• 年：2013
• 卷：899
• 期：Complete
• 页码：60-75
• 全文大小：270 K

文摘

A microscopic kaonic-atom optical potential is constructed, using the Ikeda-Hyodo-Weise NLO chiral subthreshold scattering amplitudes constrained by the kaonic hydrogen SIDDHARTA measurement, and incorporating Pauli correlations within the Waas-Rho-Weise generalization of the Ericson-Ericson multiple-scattering approach. Good fits to kaonic atom data over the entire periodic table require additionally sizable -motivated absorptive and dispersive phenomenological terms, in agreement with our former analysis based on a post-SIDDHARTA in-medium chirally-inspired NLO separable model by Cieply and Smejkal. Such terms are included by introducing a phenomenological potential and coupling it self-consistently to . Properties of resulting kaonic atom potentials are discussed with special attention paid to the role of -nuclear absorption and to the extraction of density-dependent amplitudes representing multi-nucleon processes.