K- pp system with chiral SU(3) effective interaction

By Akinobu Dot'e, T. Hyodo, W. Weise. 2008

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Abstract The K − p p system is investigated using a variational approach with realistic two-body interactions: the Argonne v18 NN potential and an energy dependent K ¯ N effective interaction derived from chiral SU(3) coupled-channel dynamics. Uncertainties in subthreshold extrapolations of the K ¯ N interaction are considered. A weakly bound K − p p state is found, with a binding energy B = ( 19 ± 3 ) MeV substantially smaller than suggested in previous calculations. The decay width Γ ( K − p p → π Σ N ) is estimated to range between about 40 and 70 MeV.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/366e6cffd1360b526e972f6030bd134a0ea6ba91