Departmental Seminar

Multi-nucleon transfer reactions and their coupling effect on sub-barrier fusion reactions

Dr Sunil Kalkal Devi
Department Nuclear Physics

Sub barrier fusion cross sections cannot be explained by 1-dimensional barrier penetration models. The fusion cross sections in this energy range are enhanced by orders of magnitude due to channel coupling of various internal degrees of freedom. The role of static and dynamic deformation has been extensively explored but the same cannot be said about multi-nucleon transfer reactions.

This talk will address role of multi-neutron transfer channels in sub-barrier fusion enhancement and transfer reactions in general for 28Si+90,94Zr systems. The fusion cross-sections for these systems were measured from ~20% below to ~20% above barrier energy and coupled channels calculations were performed. Transfer reactions were measured at below and above barrier energies to further support the sub-barrier fusion enhancement and to understand the energy dependence of transfer mechanism for multi-nucleon transfer reactions.

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