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The Lambda-Lambda Interaction and ^{6}_{Lambda Lambda}He

I. R. Afnan·B. F. Gibson
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Abstract

An OBE potential model for the ^{1}S_0 S = -2 interaction is analyzed with emphasis on the role of coupling between the Lambda Lambda, N Xi, and Sigma Sigma channels. Singlet scalar exchange, an approximation to two-pion exchange, is significant in all channels; surprisingly, the one-pion exchange component is almost negligible. The size of the channel coupling as a function of the overall strength of the OBE model potential is examined. Implications of the analysis for the binding energy of ^{6}_{Lambda Lambda}He are considered; the new experimental datum may suggest a consistency between the extracted Lambda Lambda matrix element and the relation implied by SU(3) among OBE baryon-baryon interactions. \\

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I. R. Afnan, B. F. Gibson. 2002-07-17. The Lambda-Lambda Interaction and ^{6}_{Lambda Lambda}He. https://doi.org/10.1103/physrevc.67.017001

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