1. Role of p-induced population of medium-mass (A~150) neutron-rich nuclei.
- Author
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Banerjee, D., Saha, A., Bhattacharjee, T., Guin, R., Das, S. K., Das, P., Pandit, Deepak, Mukherjee, A., Chowdhury, A., Bhattacharya, Soumik, Gupta, S. Das, Bhattacharyya, S., Mukhopadhyay, P., and Banerjee, S. R.
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ATOMIC nucleus , *NEUTRONS , *CYCLOTRONS , *GAMMA rays , *NUCLEAR cross sections , *HEAVY ions - Abstract
Excitation functions were measured by stacked-foil activation technique for the 150Nd(p,xpyn) reaction using a 97.65% enriched 150Nd target. Measurement up to ~50% above barrier and down to 18% below the barrier was performed using a proton beam energy (Ep) of 7-15 MeV from the VECC Cyclotron. The yield of suitable γ rays emitted following the decay of relevant evaporation residues was determined using a 50% high-purity germanium (HPGe) detector. The (p,n) cross section was found to follow the expected trend with a maximum value of 63.7(4.9) mb at Ep~8.6 MeV. The (p,2n) cross section gradually increased with Ep and had a maximum contribution to the total reaction cross section after Ep~9.0 MeV. The (p,p'n) reaction channel also showed a reasonable yield with a threshold of Ep~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. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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