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Separable potential model for K- N interactions at low energies
- 1.0341255 - ÚJF 2010 RIV DE eng J - Journal Article
Cieplý, Aleš - Smejkal, J.
Separable potential model for K- N interactions at low energies.
European Physical Journal A. Roč. 43, č. 2 (2010), s. 191-208. ISSN 1434-6001. E-ISSN 1434-601X
R&D Projects: GA ČR GA202/09/1441
Institutional research plan: CEZ:AV0Z10480505
Keywords : CHIRAL PERTURBATION-THEORY * KAON-NUCLEON INTERACTIONS * SCATTERING LENGTHS
Subject RIV: BE - Theoretical Physics
Impact factor: 2.592, year: 2010
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.
Permanent Link: http://hdl.handle.net/11104/0184295
Number of the records: 1