Impact of pairing and neutron-excess on suppression of the above-barrier fusion cross-section in 19O + 12C
Year: 2025
Type: article
Abstract: 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.
Source: Physics Letters B
Authors: H. Desilets, Rohit Kumar, R.T. deSouza, S. Hudan, C. Ciampi, A. Chbihi, K.W. Brown, K. Godbey, B. Pinheiro, E.N. Cardozo, J. Lubian
Institutions: Indiana University Bloomington, Indiana University, Centre National de la Recherche Scientifique, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut National de Physique Nucléaire et de Physique des Particules, Grand Accélérateur National d'Ions Lourds, Facility for Rare Isotope Beams, Michigan State University, Universidade Federal Fluminense
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4411090608