Sub-barrier fusion of weakly bound Li 6 with Ni 58

E. F. Aguilera, E. Martinez-Quiroz, P. Amador-Valenzuela, D. Lizcano, A. García-Flores, J. J. Kolata, A. Roberts, G. V. Rogachev, G. F. Peaslee, V. Guimarães, F. D. Becchetti, A. Villano, M. Ojaruega, Y. Chen, H. Jiang, M. Febbraro, P. A. DeYoung, T. L. Belyaeva

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Evaporation-proton yields were measured for the fusion of the weakly bound nucleus Li6 on a Ni58 target at six near- or sub-barrier bombarding energies. Effects of the one-neutron transfer reaction were estimated and corrections made. Total-fusion cross sections were deduced using calculated proton multiplicities. The resulting fusion excitation function shows a considerable enhancement with respect to calculations for a bare potential. Inelastic couplings are estimated to have insignificant effects on such fusion. The sum of total fusion plus one-neutron transfer cross sections nearly saturates the total reaction cross section in the energy region measured. Comparison with previous results appropriately scaled for the Li6+(Co59, Ni64, Zn64) systems shows good consistency except for some data spread at the lower energies.

Original languageEnglish (US)
Article number024616
JournalPhysical Review C
Issue number2
StatePublished - Aug 23 2017

Bibliographical note

Funding Information:
E.F.A. acknowledges useful discussions with A. Di Pietro and is grateful for the warm hospitality of all personnel at Notre Dame during the measurements. This work has been partially supported by CONACYT (México) and by the NSF (USA) under Grants No. PHY14-01343 and No. PHY 14-01242. V.G. thanks the Conselho Nacional de Desenvolvimento Cientifico (CNPq) (Grant No. 302969/2013-6).

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