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The $χ$-BS(3) approach

M. F. M. Lutz·E. E. Kolomeitsev
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Abstract

We present the results of the $χ$-BS(3) approach demonstrating that a combined chiral and 1/N_c expansion of the Bethe-Salpeter interaction kernel leads to a good description of the kaon-nucleon, antikaon-nucleon and pion-nucleon scattering data typically up to laboratory momenta of p_lab~500 MeV. We solve the covariant on-shell reduced coupled channel Bethe-Salpeter equation with the interaction kernel truncated to chiral order Q^3 and to the leading order in the 1/N_c expansion

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M. F. M. Lutz, E. E. Kolomeitsev. 2001-10-18. The $χ$-BS(3) approach. https://arxiv.org/abs/nucl-th/0110045

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