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

Abstract

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.

4 pages, one figure

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Cited by in corpus (5)

• Baryon-baryon interactions in the SU6 quark model and their applications to light nuclear systems
• Scattering lengths of strangeness S=-2 baryon-baryon interactions
• Spin-orbit splitting of 9 Lambda Be excited states studied with the SU_6 quark-model baryon-baryon interactions
• S-shell $\Lambda \Lambda$ hypernuclei based on chiral interactions
• Lambda alpha, Sigma alpha and Xi alpha potentials derived from the SU6 quark-model baryon-baryon interaction