Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-12-17
Nucl.Phys. A754 (2005) 91-102
Physics
Nuclear Physics
Nuclear Theory
10 pages, 11 figures, invited talk at HYP2003, Jefferson Lab, October 2003, to be published in the proceedings -- Nucl. Phys.
Scientific paper
10.1016/j.nuclphysa.2005.01.021
Recent experiments on production of Lambda-Lambda hypernuclei have renewed interest in extracting the Lambda-Lambda interaction from the few events identified since the inception of this field forty years ago. Few-body calculations relating to this issue are reviewed, particularly with respect to the possibility that A=4 marks the onset of Lambda-Lambda binding in nuclei. The Nijmegen soft-core model potentials NSC97 qualitatively agree with the strength of the Lambda-Lambda interaction deduced from the newly determined binding energy of Lambda-Lambda-6He. Applying the extended NSC97 model to stranger nuclear systems suggests that A=6 marks the onset of Xi binding, with a particle stable Lambda-Xi-6He, and that strange hadronic matter is robustly bound.
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