1998/05/06 by J. Haidenbauer, Haidenbauer, J., W. Melnitchouk +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/9805014
10 pages, 7 figures, presented at Sendai International Workshop on the Spectroscopy of Hypernuclei, Sendai, Japan
arxiv created 1998/05/06 · arxiv updated 2009/11/30
We report on progress in the development of a microscopic model for the hyperon-nucleon interaction within the meson-exchange framework, which incorporates both one-meson as well as correlated two-meson exchange contributions. The main new feature of the model is the exchange of two correlated pions or kaons, both in the scalar-isoscalar and the vector-isovector channels. In the scalar channel it provides the main part of the intermediate-range interaction between two baryons, thereby eliminating the need for the fictitious sigma meson, which has been an unavoidable element of effective one-boson-exchange descriptions.