Pairing enhancement in a two-neutron transfer process through the continuum

Abstract

Enhancement, due to constructive interference through the many possible reaction channels, occurs in two-neutron transfer reactions from a bound system $A$ to a weakly-bound system ($A$+2), whenever the intermediate system is unbound and consists of a continuum with a resonant state. We elucidate this phenomenon in the case of ${}^6$He, modeled as two neutrons in the orbitals of an intermediate ${}^5$He nucleus, comparing the realistic case of an unbound ($A$+1) system with an artificially bound case. A properly modeled continuum in these calculations is found to be crucial and leads to significant enhancement due to pairing correlations.

9 pages, 3 figures

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Cited by in corpus (2)

• Investigating the rate of ${}^{10}$Be(n,$\gamma$)${}^{11}$Be radiative capture reaction within the FRDWBA framework
• Deformation, halo, and bubble structure: A paradigm shift of exotic phenomena in light to medium mass nuclei