Faddeev calculation of 6 He Lambda Lambda using SU_6 quark-model baryon-baryon interactions

Details Faddeev calculation of 6 He Lambda Lambda using SU_6 quark-model baryon-baryon interactions Faddeev calculation of 6 He Lambda Lambda using SU_6 quark-model baryon-baryon interactions

2004-05-20

arxiv.org/abs/nucl-th/0405056v1

Phys.Rev. C70 (2004) 037001

Physics

Nuclear Physics

Nuclear Theory

4 pages, one figure

Scientific paper

10.1103/PhysRevC.70.037001

Quark-model hyperon-nucleon and hyperon-hyperon interactions by the Kyoto-Niigata group are applied to the two-Lambda plus alpha system in a new three-cluster Faddeev formalism using two-cluster resonating-group method kernels. The model fss2 gives a reasonable two-Lambda separation energy Delta B_{Lambda Lambda}=1.41 MeV, which is consistent with the recent empirical value, Delta B^{exp}_{Lambda Lambda}=1.01 +/- 0.20 MeV, deduced from the Nagara event. Some important effects that are not taken into account in the present calculation are discussed.

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