arXiv:nucl-th/9905014·v1·Nuclear Theory

The $ΛΛ - Ξ N$ Coupling and the Binding Energy of $_{\Lambda\Lambda}^{6}}$ He

To understand the difference between the value of the nn and Lambda-Lambda two-body matrix elements, we examine the role of the coupling between the Lambda-Lambda and Xi-N channels, first within the framework of SU(3), and second in the numerical results for the binding energy of Lambda-Lambda 6He. We find that it is essential to include the coupled channel nature of the BB interaction as we proceed from strangeness zero to the strangeness -1 and -2 channels if we are to understand the relative magnitude of the two-body matrix elements in the different strangeness channels.

Comments: 10 pages, 2 figures, talk at APCTP workshop on strangeness in nuclear physics

The ΛΛ−ΞN Coupling and the Binding Energy of _{\Lambda\Lambda}^{6}}He

Abstract

The $ΛΛ - Ξ N$ Coupling and the Binding Energy of $_{\Lambda\Lambda}^{6}}$ He