Impact of pairing and neutron-excess on suppression of the above-barrier fusion cross-section in 19O + 12C
Fusion excitation functions for 19 O and 19 F + 12 C were simultaneously measured along with 20 O + 12 C using the active-target detector MuSIC@Indiana. Examination of the cross-section just above the barrier reveals a significant suppression of fusion for the 19 O + 12 C system starting at E c . m . ∼12 MeV. This suppression is not simply due to the reduced binding of the unpaired neutron in 19 O as 17 O + 12 C does not exhibit the same sharp suppression of the fusion cross-section. Multiple mean-field models are used as a reference to understand the measured fusion excitation functions.
Authors
- Bianca Pinheiro (ORCID: https://orcid.org/0000-0003-2761-0522)
- Kyle Godbey (ORCID: https://orcid.org/0000-0003-0622-3646)
- J. Lubián (ORCID: https://orcid.org/0000-0001-7735-1835)
- K. W. Brown (ORCID: https://orcid.org/0000-0003-1923-3595)
- R. T. deSouza (ORCID: https://orcid.org/0000-0001-5835-677X)
- S. Hudan (ORCID: https://orcid.org/0000-0002-9722-2245)
- A. Chbihi
- C. Ciampi (ORCID: https://orcid.org/0000-0002-8142-0052)
- E. N. Cardozo (ORCID: https://orcid.org/0000-0002-4348-1743)
- H. Desilets (ORCID: https://orcid.org/0009-0009-4348-6526)
- Rohit Kumar (ORCID: https://orcid.org/0000-0002-0450-7218)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Universidade Federal Fluminense (BR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Indiana University Bloomington (US)
- Laboratoire National Henri Becquerel (FR)
- Michigan State University (US)
Publication Details
- Journal
- Physics Letters B
- Published
- 2025-06-06
- DOI
- https://doi.org/10.1016/j.physletb.2025.139643
- Citations
- 2
- Primary Topic
- Nuclear physics research studies
- Type
- article
- Field-Weighted Citation Impact
- 3.74