AstrophysicalS-factor for⁶Li(ρ, γ)⁷Be in the coupled-channel Gamow shell model

Abstract

Abstract. We have applied the Gamow shell model (GSM) in the coupled-channel representation to study the astrophysical S -factor for the proton radiative capture reaction of 6 Li. Reaction channels are built by coupling the proton wave function expanded in different partial waves with the GSM wave functions of the ground state (1 + ) and the excited states (3 + 1 , 0 + 1 and 2 + 1 ) of 6 Li. All relevant E1, M1, and E2 transitions from the initial continuum states in 7 Be to the final bound states (3/2 − 1 and 1/2 − 1 ) are included. It is found that the calculated total astrophysical S factor for this reaction agrees well with the experimental data.