Single-particle spin-orbit potentials of the Lambda and Sigma hyperons based on the quark-model G-matrix

Using the SU 6 quark-model baryon-baryon interaction which was recently developed by the Kyoto-Niigata group, we calculate NN , ΛN and ΣN G -matrices in ordinary nuclear matter. Following the Scheerbaum's prescription, the strength of the single-particle spin-orbit potential S B is quantitatively discussed. The S Λ becomes small because of the cancellation between spin-orbit and anti-symmetric spin-orbit components. The shortrange correlation is found to further reduce S Λ .

talk: Tokyo 1998/12/14
nuclear matter
hypernucleus
nucleon nucleon: interaction
nucleon hyperon: interaction
potential
spin: orbit
correlation: short-range
quark
symmetry: SU(6)

References(9)

Figures(0)

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