Photodisintegration of 11 Li and Radiation Capture of Two Neutrons by 9 Li

Abstract

Photodisintegration of 11Li and radiation capture of two neutrons by 9Li are studied in the frame of algebraic version of resonating group method and in asymptotic potential approximation. The behavior of the scattering phases shows on the existence of Jπ=3/2+ and Jπ=5/2+ resonances in continuum above the three-body decay threshold 11Li→9Li+n + n. The cross-section of photodisintegration as well as the cross-section of radiation capture have been received. Energetic dependence of the first one is in good correspondence with the experimental data.