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arXiv · 1909.03648

Role of Neutron Transfer in Sub-Barrier Fusion

Rudra N. Sahoo·Malika Kaushik·Arshiya Sood·Pawan Kumar·Swati Thakur·Arzoo Sharma·Pushpendra P. Singh·Md. Moin Shaikh·Rohan Biswas·Abhishek Yadav·Manoj K. Sharma·J. Gehlot·S. Nath·N. Madhvan
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Abstract

Fusion excitation function of $^{35}$Cl + $^{130}$Te system is measured in the energy range around the Coulomb barrier and analyzed in the framework of the coupled-channels approach. The role of projectile deformation, nuclear structure, and the couplings of inelastic excitations and positive Q$-$value neutron transfer channels in sub-barrier fusion are investigated through the comparison of reduced fusion excitation functions of $^{35,37}$Cl +$^{130}$Te systems. The reduced fusion excitation function of $^{35}$Cl + $^{130}$Te system shows substantial enhancement over $^{37}$Cl + $^{130}$Te system in sub-barrier energy region which is attributed to the presence of positive Q-value neutron transfer channels in $^{35}$Cl + $^{130}$Te system. Findings of this work strongly suggest the importance of +2$n$ - transfer coupling in sub-barrier fusion apart from the simple inclusion of inelastic excitations of interacting partners, and are in stark contrast with the results presented by Kohley \textit{et al.}, [Phys. Rev. Lett. 107, 202701 (2011)].

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Rudra N. Sahoo, Malika Kaushik, Arshiya Sood, Pawan Kumar, Swati Thakur, Arzoo Sharma, Pushpendra P. Singh, Md. Moin Shaikh, Rohan Biswas, Abhishek Yadav, Manoj K. Sharma, J. Gehlot, S. Nath, N. Madhvan. 2019-09-09. Role of Neutron Transfer in Sub-Barrier Fusion. https://doi.org/10.1103/physrevc.102.024615

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