Study of structure and reaction of high excited Λ6Li states based on 3He + d + Λ cluster model

We calculate the energy levels of Λ6Li by using the microscopic 3He + d + Λ cluster model. In this model 3He and d cluster are treated to be composite and the antisymmetrization among all nucleons are properly taken into account. The ΛN interaction is taken to be simply one range Gaussian form, which reproduces the binding energy of Λ4He. The result agrees finely with the experimental energy of the third peak just around the threshold of Λ4He + d. Next, the effective neutron number Neff is studied under distorted wave impulse approximation where the distoted waves of mesons are calculated eikonal approximation. Calculated magnitude of Neff agrees to experimental one. (author)