Why does neutron transfer play different roles in sub-barrier fusion reactions ${}^{32}$S+${}^{94,96}$Zr and ${}^{40}$Ca+${}^{94,96}$Zr?

V. V. Sargsyan, G. G. Adamian, N. V. Antonenko +2

The sub-barrier capture (fusion) reactions ${}^{32}$S+${}^{90,94,96}$Zr, ${}^{36}$S+${}^{90,96}$Zr, ${}^{40}$Ca+${}^{90,94,96}$Zr, and ${}^{48}$Ca+${}^{90,96}$Zr with positive and negative $Q$-val…