$\bar{K}$ N dynamics at and near threshold energies

A. Cieplý; J. Smejkal

doi:doi:10.1051/epjconf/20100303015

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Issue		EPJ Web of Conferences Volume 3, 2010 19^th International IUPAP Conference on Few-Body Problems in Physics


Article Number		03015
Number of page(s)		8
Section		Few-Hadron Systems
DOI		http://dx.doi.org/10.1051/epjconf/20100303015
Published online		12 April 2010

EPJ Web of Conferences 3, 03015 (2010)
http://dx.doi.org/10.1051/epjconf/20100303015

N dynamics at and near threshold energies

A. Cieplý¹^a and J. Smejkal²

¹ Nuclear Physics Institute, 250 68 Řež, Czech Republic
² Institute of Experimental and Applied Physics, Czech Technical University in Prague, Horská 3a/22, 128 00 Praha 2, Czech Republic

^a e-mail: cieply@ujf.cas.cz

Published online: 12 April 2010

Abstract

We have constructed eﬀective separable meson-baryon potentials to match the equivalent chiral amplitudes up to the second order in external meson momenta. The parameters of the model were ﬁtted to the threshold and low energy K⁻p data including the 1s level characteristics of the kaonic hydrogen atom. We discuss the results of our ﬁts and use the model to calculate the πΣ mass spectrum and the energy dependence of the K⁻N amplitudes.