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The role of inelastic couplings on the C-12+C-12 fusion a sub-barrier energies

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Author(s):
Gasques, L. R. ; Chamon, L. C. ; Cessel, G. P.
Total Authors: 3
Document type: Journal article
Source: EUROPEAN PHYSICAL JOURNAL A; v. 58, n. 6, p. 5-pg., 2022-06-06.
Abstract

The effect of inelastic couplings on the modified astrophysical S*-factor for 12 C-12+C-12 fusion reaction at subbarrier energies is investigated using the Brazilian Nuclear Potential. The C-12 excited states (2(1)(+), 4.44 MeV; 3(1)(-), 9.64 MeV; 2(2)(+), 9.84 MeV; 2(3)(+), 10.3 MeV; 2(4)(+), 16.1 MeV; 1(1)(-), 17.2 MeV and 2(5)(+), 18.8 MeV) are included in the coupling scheme. We have also coupled the 0(2)(+) Hoyle state (E* = 7.65 MeV) to the 2(1)(+). In our model, the fusion cross section is associated to the absorption arising from the imaginary potential. Many resonances presented at the sub-barrier data are fairly reproduced by our approach. (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: 21/04332-4 - Studying key reactions for astrophysics using the Brazilian Nuclear Potential
Grantee:Gabriel Pistore Cessel
Support Opportunities: Scholarships in Brazil - Scientific Initiation