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

K. Fossez (1) , N. Michel (1) , M. Ploszajczak (1) , Y. Jaganathen

1 GANIL - Grand Accélérateur National d'Ions Lourds

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 32 − and the first excited state 12 − of 7 Be/ 7 Li and the proton/neutron wave function expanded in different partial waves.

Domaines: Physique Nucléaire Théorique [nucl-th]

K. Fossez, N. Michel, M. Ploszajczak, Y. Jaganathen. Description of the proton and neutron radiative capture reactions in the Gamow shell model. Physical Review C, 2015, 91, pp.034609. ⟨10.1103/PhysRevC.91.034609⟩. ⟨in2p3-01113652⟩