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Role ofp-induced population of medium-mass(A∼150)neutron-rich nuclei

Authors :
Deepak Pandit
Abhijit Chowdhury
S. Das Gupta
P.K. Mukhopadhyay
T. Bhattacharjee
P. Das
Sumita Bhattacharyya
S. R. Banerjee
R. Guin
S. K. Das
A. Mukherjee
A. Saha
D. Banerjee
Soumik Bhattacharya
Source :
Physical Review C. 91
Publication Year :
2015
Publisher :
American Physical Society (APS), 2015.

Abstract

Excitation functions were measured by stacked-foil activation technique for the $^{150}$Nd(p, xpyn) reaction using 97.65$%$ enriched $^{150}$Nd target. Measurement up to $\sim$50$%$ above barrier and down to 18$%$ below the barrier was performed using proton beam energy (E$_p$) of 7 - 15 MeV from VECC Cyclotron. The yield of suitable $\gamma$ rays emitted following the decay of relevant evaporation residues was determined using a 50$%$ High Purity Germanium (HPGe) detector.(p,n) cross section was found to follow the expected trend with a maximum value of 63.7(4.9)mb at E$_p$ $\sim$ 8.6 MeV. (p,2n) cross section gradually increased with E$_p$ and had maximum contribution to the total reaction cross section after E$_p$ $\sim$ 9.0 MeV. (p, p$^{\prime}$n) reaction channel also showed a reasonable yield with a threshold of E$_p$ $\sim$ 12.0 MeV. The experimental data were corroborated with statistical model calculations using different codes, viz., CASCADE, ALICE/91 and EMPIRE3.1. All the calculations using a suitable set of global parameters could reproduce the excitation function fairly well in the present energy range.

Details

ISSN :
1089490X and 05562813
Volume :
91
Database :
OpenAIRE
Journal :
Physical Review C
Accession number :
edsair.doi...........7b6d07038e0d856a609b596653264b91