Investigation of the fusion process for B-10+Au-197 at near-barrier energies

Author(s):Show less -

Aversa, M. ; Abriola, D. ; Alvarez, M. A. G. ; Arazi, A. ; Cardona, M. A. ; Chamon, L. C. ; de Barbara, E. ; de Jesus, J. ; Fernandez-Garcia, J. P. ; Gasques, L. R. ; Hojman, D. ; Lepine-Szily, A. ; Marti, G., V ; Pacheco, A. J. ; Scarduelli, V ; Zagatto, V. A. B.

• Document type: Journal article
• Source: PHYSICAL REVIEW C; v. 101, n. 4, p. 8-pg., 2020-04-01.

Abstract

In a previous work, we presented data for the B-10 + Au-197 system, corresponding to quasielastic and elastic scattering, 197Au inelastic excitation, and one neutron pickup transfer, measuring the angular distribution of scattered beam-like ejectiles at several energies around the Coulomb barrier. In this paper, we present data for the fusion process of the same system, at several energies around the Coulomb barrier, as well as new data for one neutron pickup and stripping transfer. In this case, we detected offline gamma rays stemming from the beta-delayed decay chain of fusion-evaporation residues and heavy transfer products. As in our previous work, we analyzed this data set with coupled reaction channels calculations using the Sao Paulo potential. We show that the coupling to the one neutron transfer channel is quite important to describe the fusion data at the sub-barrier energy region. We also provide a comparison of the experimental fusion cross sections obtained for B-10 + Au-197 with data for several other systems involving the same target nucleus. (AU)

• FAPESP's process: 19/07767-1 - Nuclear reactions with weakly-bound or cluster-structured radioactive and stable nuclei
• Grantee: Leandro Romero Gasques
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 19/05769-7 - Implantation of a new acquisition system for exclusive measurements of nuclear physics with weakly bound nuclei
• Grantee: Valdir Brunetti Scarduelli
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/09998-8 - Towards a modern array of particle detectors: a versatile tool for nuclear reaction studies
• Grantee: Leandro Romero Gasques
• Support Opportunities: Regular Research Grants