Lambda-Lambda hypernuclei and stranger systems
arXiv:nucl-th/0312071 · doi:10.1016/j.nuclphysa.2005.01.021
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.
10 pages, 11 figures, invited talk at HYP2003, Jefferson Lab, October 2003, to be published in the proceedings -- Nucl. Phys. A
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Cited by in corpus (6)
- Hypernuclear Physics for Neutron Stars
- Predictions for the strangeness S=-3 and -4 baryon-baryon interactions in chiral effective field theory
- Three-body resonances Lambda-n-n and Lambda-Lambda-n
- Effects of $\bm\la$ hyperons on the deformations of even-even nuclei
- Quenched Λ spin-orbit splitting by relativistic Fock diagram in single-Λ hypernuclei
- QCD sum rules for the baryon octet in nuclear matter