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

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

2001-10-04

arxiv.org/abs/nucl-th/0110008v2

Phys.Rev. C65 (2002) 041001

Physics

Nuclear Physics

Nuclear Theory

5 pages, 3 postscript figures; fig.2 replaced, minor changes, accepted as Rapid Communication in PRC

Scientific paper

10.1103/PhysRevC.65.041001

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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