Lambda-Lambda hypernuclei and stranger systems
Abstract
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.
Cite
@article{arxiv.nucl-th/0312071,
title = {Lambda-Lambda hypernuclei and stranger systems},
author = {Avraham Gal},
journal= {arXiv preprint arXiv:nucl-th/0312071},
year = {2009}
}
Comments
10 pages, 11 figures, invited talk at HYP2003, Jefferson Lab, October 2003, to be published in the proceedings -- Nucl. Phys. A