Study of the Hindrance Effect in Sub-barrier Fusion Reactions
M. Notani, P. Davies, B. Bucher, X. Fang, L. Lamm, C. Ma, E. Martin,, W. Tan, X.D. Tang, S. Thomas, C.L. Jiang
TL;DR
This study measures fusion cross sections of the 12C(13C, p)24Na reaction at sub-barrier energies, finding a plateau in the S-factor rather than a maximum, and compares results with theoretical models.
Contribution
It provides new experimental data on fusion cross sections at low energies and compares these with existing models to understand the hindrance effect.
Findings
No obvious S-factor maximum observed, only a plateau.
Experimental data at Ec.m. = 2.6-3.0 MeV.
Comparison with models highlights discrepancies.
Abstract
We have measured the fusion cross sections of the 12C(13C, p)24Na reaction through off-line measurement of the beta-decay of 24Na using the beta-gamma coincidence method. Our new measurements in the energy range of Ec.m. = 2.6-3.0 MeV do not show an obvious S-factor maximum but a plateau. Comparison between this work and various models is presented.
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