On three-cluster disintegration of 9Be

Abstract

We study a process of the photodisintegration of some Borromean light nuclei into three clusters. This
study is performed within a three-cluster microscopic model. In Reference [1] this model was applied to
obtain parameters of resonance states in ⁹Be and ⁹B and to establish their nature. Main aim of the present
investigations is to describe the dipole transition probability from the ground state of 9Be to the states of
three-cluster α+α+n continuum by using the same model. That model exploits the hyperspherical
harmonics basis (HHB) and thus reduces many-channel Schrödinger equation to the algebraic matrix
(AM) form. The dipole transitions from the ground 3/2- state to the 1/2+ states of three-cluster continuum
were studied in detail. The role of resonance states in three-cluster continuum to this process is
investigated in detail. The dominant channels with the maximal dipole strength due to the coupling
between the ground and scattering states are discovered