arXiv:nucl-th/0110045·v1·Nuclear Theory
The -BS(3) approach
M.F.M. Lutz (GSI, Germany)🇩🇪 · E.E. Kolomeitsev (ECT*, Italy)🇮🇹
Abstract
We present the results of the -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
Comments: 3 pages, 3 fig. Talk given by M.F.M.L. at MENU2001 conference