Structure of hypernucleus $_{\Lambda}^{7}$Li within microscopic three-cluster model

Abstract

The structure of bound and resonance states of the hypernucleus $_{\Lambda}^{7}$Li is studied within a three-cluster model. This nucleus is considered a three-cluster structure consisting of $^{4}$He, a deuteron, and a lambda hyperon. The chosen three-cluster configuration allows us to describe more accurately the structure of hypernucleus $_{\Lambda}^{7}$Li and the dynamics of different processes that involve interactions of lightest nuclei and hypernuclei. The main goal of the present investigations is to find resonance states in the three-cluster continuum of $_{\Lambda}^{7}$Li and determine their nature. A set of narrow resonance states is detected at the energy range 0$<E\leq$2 MeV above the three-cluster threshold $^{4}$He+$d$+$\Lambda$.