Abstract :
The structure of the T=1 iso-triplet hypernuclei, View the MathML source, View the MathML source and View the MathML source within the framework of an α+Λ+N+N four-body cluster model is studied. A phenomenological ΛN charge symmetry breaking (CSB) interaction is introduced. The Λ binding energy of the ground state in View the MathML source is predicted to be 5.16(5.36)MeV with(without) the CSB interaction. The five-body cluster model calculation of ααnΛΛ for View the MathML source, which has been observed as Hida event, is performed. The calculated BΛΛ is 18.23MeV, which is less bound by about 2 MeV than the experimental data. The structure calculation in View the MathML source and View the MathML source are performed within the framework of αΞ−nn and ααΞ−n four-body model. View the MathML source and View the MathML source are predicted to have bound states. We propose to observe the bound states in future (K−,K+) experiments using 7Li and 10B targets in addition to the standard 12C target.
