Understanding the mechanisms of nuclear collisions: A complete study of the B-10+Sn-120 reaction

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Gasques, L. R. ; Alvarez, M. A. G. ; Arazi, A. ; Carlson, B., V ; Chamon, L. C. ; Fernandez-Garcia, J. P. ; Lepine-Szily, A. ; Lubian, J. ; Rangel, J. ; Rodriguez-Gallardo, M. ; Scarduelli, V ; Zagatto, V. A. B.

• Document type: Journal article
• Source: PHYSICAL REVIEW C; v. 103, n. 3, p. 12-pg., 2021-03-22.

Abstract

Background: Reactions involving exotic and stable weakly bound nuclei have been extensively studied in recent years. Although several models have been successfully used to explain particular reaction outcomes, the answers to many questions remain elusive. In previous works, we presented elastic, inelastic, and transfer angular distributions for the B-10 + Sn-120 system measured at E-Lab = 31.5, 33.0, 35.0, and 37.5 MeV. The data set was analyzed through coupled reaction channels calculations in the context of the double-folding Sao Paulo potential. Purpose: We investigate nuclear reaction mechanisms for systems involving weakly bound projectiles. Method: Angular distributions for several nuclear reaction processes were measured for the B-10 + Sn-120 system at E-Lab = 39.70 MeV. Results: The new data set involves angular distributions for elastic scattering, projectile and target inelastic excitations, one-neutron pickup transfer, one-proton stripping transfer, deuteron pickup transfer, and He-3,He-4 stripping transfer. We have also observed Be-10 nuclei. The effect of the couplings to some nonelastic states on the angular distributions is discussed. Conclusion: The theoretical calculations within the coupled reaction channels formalism provide an overall good agreement with the corresponding inelastic, one-neutron stripping, one-proton pickup, one-deuteron pickup, and He-3 stripping transfer data. However, to improve the description of the elastic scattering angular distribution, the inclusion of additional channels in the coupling scheme might be necessary. (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: 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems
• Grantee: Brett Vern Carlson
• Support Opportunities: Research Projects - Thematic Grants
• 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