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Light Lambda-Lambda Hypernuclei and the Onset of Stability for Lambda-Xi Hypernuclei

I. N. Filikhin·A. Gal
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Abstract

New Faddeev-Yakubovsky calculations for light Lambda-Lambda hypernuclei are presented in order to assess the self consistency of the Lambda-Lambda hypernuclear binding-energy world data and the implied strength of the Lambda-Lambda interaction, in the wake of recent experimental reports on Lambda-Lambda-4H and Lambda-Lambda-6He. Using Gaussian soft-core simulations of Nijmegen one-boson-exchange model interactions, the Nijmegen soft-core model NSC97 simulations are found close to reproducing the recently reported binding energy of Lambda-Lambda-6He, but not those of other species. For stranger systems, Faddeev calculations of light Lambda-Xi hypernuclei, using a simulation of the strongly attractive Lambda-Xi interactions due to the same model, suggest that Lambda-Xi-6He marks the onset of nuclear stability for Xi hyperons.

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I. N. Filikhin, A. Gal. 2002-03-06. Light Lambda-Lambda Hypernuclei and the Onset of Stability for Lambda-Xi Hypernuclei. https://doi.org/10.1103/physrevc.65.041001

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