The hyperon-nucleon interaction: conventional versus effective field theory approach
arXiv:nucl-th/0702015 · doi:10.1007/978-3-540-72039-3_4
Abstract
Hyperon-nucleon interactions are presented that are derived either in the conventional meson-exchange picture or within leading order chiral effective field theory. The chiral potential consists of one-pseudoscalar-meson exchanges and non-derivative four-baryon contact terms. With regard to meson-exchange hyperon-nucleon models we focus on the new potential of the Juelich group, whose most salient feature is that the contributions in the scalar--isoscalar (Ï) and vector--isovector (Ï) exchange channels are constrained by a microscopic model of correlated ÏÏand KKbar exchange.
28 pages, 8 figures, submitted to Lecture Notes in Physics