Four-body cluster structure of $A=7-10$ double-$\Lambda$ hypernuclei

Abstract

Energy levels of the double-$\Lambda$ hypernuclei ${}_{\Lambda }^{}$${}_{\Lambda }^7$He, ${}_{\Lambda }^{}$${}_{\Lambda }^7$Li, ${}_{\Lambda }^{}$${}_{\Lambda }^8$Li, ${}_{\Lambda }^{}$${}_{\Lambda }^9$Li, ${}_{\Lambda }^{}$${}_{\Lambda }^9$Be and ${}_{\Lambda }^{}$${}_{\Lambda }^{10}$Be are predicted on the basis of the $\alpha +x+\Lambda +\Lambda$ four-body model with $x=n,p,d,t{,}^3$He and $\alpha$, respectively.

Comments: 27 pages (preprint style), 12figures submitted to Phys. Rev. C