D. H. Luong

Influence of entrance-channel magicity and isospin on quasi-fission

The role of spherical quantum shells in the competition between fusion and quasi-fission is studied for reactions forming heavy elements. Measurements of fission fragment mass distributions for different reactions leading to similar compound nuclei have been made near the fusion barrier. In general, more quasi-fission is observed for reactions with non-magic nuclei. However, the

Reduced quasifission competition in fusion reactions forming neutron-rich heavy elements

^{40}

Importance of lifetime effects in breakup and suppression of complete fusion in reactions of weakly bound nuclei

Ca+

Effects of Nuclear Structure on Quasi-fission

^{208}

Dynamics and Time-scales in Breakup and Fusion

Pb reaction is an exception, showing strong evidence for quasi-fission, though both nuclei are doubly magic. Time-dependent Hartree-Fock calculations predict fast equilibration of

Effects of Nuclear Structure in Heavy Element Formation Dynamics

N/Z

Applications of a superconducting solenoidal separator in the experimental investigation of nuclear reactions

in the two fragments early in the collision. This transfer of nucleons breaks the shell effect, causing this reaction to behave more like a non-magic one in the competition between fusion and quasi-fission. Future measurements of fission in reactions with exotic beams should be able to test this idea with larger

Challenges in describing nuclear reactions outcomes at near-barrier energies

N/Z

Investigating quasi-fission dynamics through mass-angle distributions

asymmetries.

Time-scales and mechanisms of breakup influencing fusion

This work is supported by the National Science Foundation under Grants No. PHY-1102511 and No. IIA-1341088, by the U.S. Department of Energy under Grant No. DE-FG02- 96ER40975 with Vanderbilt University, and the Australian Research Council Grants No. DP110102858, No. DP140101337, No. FL110100098, No. DP130101569, No. FT120100760, and No. DE140100784. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award No. DE-NA0000979. This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357. This research used resources of ANL’s ATLAS facility, which is a DOE Office of Science User Facility.