https://doi.org/10.1140/epja/s10050-024-01296-5
Regular Article – Experimental Physics
Study of 
Be fusion in 
Nb near the Coulomb barrier
1
Department of Physics, Indian Institute of Technology Roorkee, 247667, Roorkee, Uttarakhand, India
2
Radiochemistry Division, Homi Bhabha National Institute, Bhabha Atomic Research Centre, 400085, Mumbai, India
Received:
22
January
2024
Accepted:
5
March
2024
Published online:
16
March
2024
The measurement of fusion cross sections from the Be induced reaction on Nb within the energy range of 20–46 MeV has been conducted using off-beam 
-ray spectroscopy. The measured excitation functions have been analyzed using equilibrium and pre-equilibrium reaction-based model codes to understand the underlying mechanisms. Additionally, the measured fusion excitation function was examined within the framework of the coupled-channel approach using the CCFULL code. Notably, the coupled-channel calculations, including couplings to inelastic states of the target and the projectile, yielded a satisfactory description of the sub-barrier fusion data. However, at energies above the barrier, the fusion cross section was observed to be suppressed by approximately 17% compared to the predictions made by the coupled-channel calculations.
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