Description of the proton and neutron radiative capture reactions in the Gamow shell model.

K. FOSSEZ; N. MICHEL; M. PLOSZAJCZAK; Y. JAGANATHEN; R. M. ID BETAN

PHYS. REV. - C

AMER PHYSICAL SOC

Lugar: New York; Año: 2015 vol. 91

0556-2813

We formulate the Gamow shell model (GSM) in coupled-channel (CC) representation for the description of proton/neutron radiative capture reactions and present the first application of this new formalism for the calculation of cross-sections in mirror reactions 7 Be(p, γ)8 B and 7 Li(n, γ)8 Li. The GSM-CC formalism is applied to a translationally-invariant Hamiltonian with an effective finite-range two-body interaction. Reactions channels are built by GSM wave functions for the ground state 3/2− and the first excited state 1/2− of 7 Be/ 7 Li and the proton/neutron wave function expanded in different partial waves.