Behaviour of the potentials due to strangeness degree of freedom in 6 ΛΛHe hypernucleus

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Abstract:

We perform a fully correlated study of 6 ΛΛHe hypernucleus with two- and three-baryon potentials. We investigate the role of every strength of the strange-sector potentials on the energy breakdown and present a clear understanding of their interplay. The investigation determines the strength of the simulated Nijmegen ΛΛ potential, phenomenologically. We note that the consistency of calculations between 5 ΛHe and 6 ΛΛHe depends on the ΛN space-exchange strength only, which incidentally determines it. This study is a step forward to pin down all the strengths, to resolve A = 5 anomaly and to search for recently conjectured 4 ΛΛH in an authentic way. The study also suggests that the medium effect on strange-sector potentials often written as a repulsive three-body force may be well adapted at two-body level.

Document Type: Research Article

DOI: http://dx.doi.org/10.1088/0954-3899/34/12/014

Publication date: December 1, 2007

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