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Full-coupled channel approach to S=-2 s-shell hypernuclear systems

H. Nemura, S. Shinmura, Y. Akaishi, Khin Swe Myint

nucl-tharXiv:nucl-th/0501071

Abstract

We describe full-coupled-channel ab initio calculations among the octet baryons for S=-2 s-shell hypernuclei,LambdaLambda4H,LambdaLambda5H andLambdaLambda6He. The wave function includes Lambda Lambda, Lambda Sigma, N Xi, and Sigma Sigma channels. Minnesota NN, D2 YN and Nijmegen model D simulated YY interactions are used. This is the first attempt to explore the few-body problem of the full-coupled channel scheme for A=4-6, S=-2 multistrangeness hypernuclear systems. Bound state solutions of the Lambda Lambda hypernuclei,LambdaLambda4H,LambdaLambda5H and LambdaLambda6He, are obtained.

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