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Separable potential model for K- N interactions at low energies
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SYSNO ASEP 0341255 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Separable potential model for K- N interactions at low energies Author(s) Cieplý, Aleš (UJF-V) RID, ORCID, SAI
Smejkal, J. (CZ)Source Title European Physical Journal A. - : Springer - ISSN 1434-6001
Roč. 43, č. 2 (2010), s. 191-208Number of pages 18 s. Language eng - English Country DE - Germany Keywords CHIRAL PERTURBATION-THEORY ; KAON-NUCLEON INTERACTIONS ; SCATTERING LENGTHS Subject RIV BE - Theoretical Physics R&D Projects GA202/09/1441 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000274303600010 DOI 10.1140/epja/i2010-10904-4 Annotation The effective separable meson-baryon potentials are constructed to match the equivalent chiral amplitudes up to the second order in external meson momenta. We fit the model parameters (low-energy constants) to the threshold and low-energy K- p data. In the process, the K--proton bound-state problem is solved exactly in the momentum space and the 1s level characteristics of the kaonic hydrogen are computed simultaneously with the available low-energy K- p cross-sections. The model is also used to describe the pi Sigma mass spectrum and the energy dependence of the K- n amplitude. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2010
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