title: Near-barrier fusion of Sn + Ni and Te + Ni systems: examining the correlation between nucleon transfer and fusion enhancement.
abstract: The fusion excitation functions for radioactive (132)Sn + (58)Ni and stable (130)Te + (58,64)Ni were measured at energies near the Coulomb barrier. The coupling of transfer channels in heavy-ion fusion was examined through a comparison of Sn + Ni and Te + Ni systems, which have large variations in the number of positive Q-value nucleon transfer channels. In contrast with previous experimental comparisons, where increased sub-barrier fusion cross sections were observed in systems with positive Q-value neutron transfer channels, the reduced excitation functions were equivalent for the different Sn + Ni and Te + Ni systems. The present results suggest a dramatically different influence of positive Q-value transfer channels on the fusion process for the Sn + Ni and Te + Ni systems.
authors.affiliation: Physics Division, Oak Ridge National Laboratory, Tennessee 37831, USA. zkohley@gmail.com
authors.forename: Z
authors.initials: Z
authors.lastname: Kohley
authors.forename: J F
authors.initials: JF
authors.lastname: Liang
authors.forename: D
authors.initials: D
authors.lastname: Shapira
authors.forename: R L
authors.initials: RL
authors.lastname: Varner
authors.forename: C J
authors.initials: CJ
authors.lastname: Gross
authors.forename: J M
authors.initials: JM
authors.lastname: Allmond
authors.forename: A L
authors.initials: AL
authors.lastname: Caraley
authors.forename: E A
authors.initials: EA
authors.lastname: Coello
authors.forename: F
authors.initials: F
authors.lastname: Favela
authors.forename: K
authors.initials: K
authors.lastname: Lagergren
authors.forename: P E
authors.initials: PE
authors.lastname: Mueller