부산대학교 도서관

While forming an ($A$+2) nucleus from a nucleus $A$ via a two-neutron transfer reaction, the constructive interference of the many possible reaction channels favors significant pairing enhancement through the continuum of the intermediate ($A$+1) nucleus [Phys. Lett. B 834, 137413 (2022)]. I analyse this situation in more detail, from the point of view of a varying pairing field leading to the formation of ($A$+2) nucleus $^6$He, described as housing two-neutrons in orbitals of $^5$He. The naturally unbound scenario of the intermediate $^5$He is compared with two hypothetically bound cases. The different possible situations manifest that the continuum correlations are extremely crucial to the extension of the pairing enhancement observed in the system.
Comment: 8 pages, 5 figures