Phys.Rev. C 93, 024602 (2016)

S.Dutta, D.Chakraborty, G.Gangopadhyay, A.Bhattacharyya

Neutron capture reactions near the N=82 shell-closure

NUCLEAR REACTIONS ¹⁴⁰Ce(n, n), E=1.5, 2.0, 2.5, 3.0 MeV; ¹⁴¹Pr(n, n), E=0.878, 1.2 MeV; ¹⁴²Nd(n, n), E=2.5 MeV; ¹⁴⁸Sm(n, n), E=2.7; calculated σ(θ) and compared to experimental data. ¹³³Cs, ¹³⁹La, ¹⁴⁰Ce, ¹⁴¹Pr, ^{135,136,137,138}Ba, ^{142,143,144,145,146}Nd, ^{144,147,148,149}Sm(n, γ), E=0.001-1 MeV; calculated σ(E), Maxwellian-averaged cross sections (MACS) at kT=30 keV, and compared to experimental data. Semimicroscopic optical model with the DDM3Y nucleon-nucleon interaction. Relevance to astrophysical s- and p-processes for nuclei near N=82 neutron shell-closure.

NUCLEAR STRUCTURE ^{133,134,135,136,137}Cs, ^{130,132,134,135,136,137,138}Ba, ^138,139La, ^{136,138,140,141,142}Ce, ^141,142,143Pr, ^{142,143,144,145,146,147}Nd, ^147,148Pm, ^{144,147,148,149}Sm; calculated charge densities, and root-mean-square (rms) charge radii using relativistic mean-field approach. Comparison with experimental values.

doi: 10.1103/PhysRevC.93.024602