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

Abstract

The structure of bound and resonance states of the hypernucleus ${}_{\hat{I}}{›}^7$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 ${}_{\hat{I}}{›}^7$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 ${}_{\hat{I}}{›}^7$Li and determine their nature. A set of narrow resonance states is detected at the energy range 0$<E\le$2 MeV above the three-cluster threshold ${}^4$He+$d$+$\hat{I}›$.

9 pages, 6 figures, Submitted to Ukr. J. Phys