Effect of Pauli repulsion and transfer on fusion

Abstract

The effect of the Pauli exclusion principle on the nucleus-nucleus bare potential is studied using a new density-constrained extension of the Frozen-Hartree-Fock (DCFHF) technique. The resulting potentials exhibit a repulsion at short distance. The charge product dependence of this Pauli repulsion is investigated. Dynamical effects are then included in the potential with the density-constrained time-dependent Hartree-Fock (DCTDHF) method. In particular, isovector contributions to this potential are used to investigate the role of transfer on fusion, resulting in a lowering of the inner part of the potential for systems with positive Q-value transfer channels.

arXiv commentProceedings of an invited talk given at FUSION17, Hobart, Tasmania, AU (20-24 February, 2017)

References in corpus (35)

• A program for coupled-channels calculations with all order couplings for heavy-ion fusion reactions
• Subbarrier fusion reactions and many-particle quantum tunneling
• Hindrance of heavy-ion fusion due to nuclear incompressibility
• Nuclear Quantum Many-Body Dynamics: From Collective Vibrations to Heavy-Ion Collisions
• Time-dependent density-functional description of nuclear dynamics
• Coupled-channels analysis of the ${}^{16}$O+${}^{208}$Pb fusion barrier distribution
• The TDHF Code Sky3D
• Particle transfer reactions with the time-dependent Hartree-Fock theory using a particle number projection technique
• Time-dependent Hartree-Fock calculations for multinucleon transfer processes in ${}^{40,48}$Ca+${}^{124}$Sn, ${}^{40}$Ca+${}^{208}$Pb, and ${}^{58}$Ni+${}^{208}$Pb reactions
• Energy dependence of nucleus-nucleus potential close to the Coulomb barrier
• 3-D unrestricted TDHF fusion calculations using the full Skyrme interaction
• Heavy-ion interaction potential deduced from density-constrained TDHF calculation
• Effect of pairing on one- and two-nucleon transfer below the Coulomb barrier: a time-dependent microscopic description
• Influence of entrance-channel magicity and isospin on quasi-fission
• Energy dependence of potential barriers and its effect on fusion cross-sections
• How the Pauli exclusion principle affects fusion of atomic nuclei
• Quantum Calculation of Dipole Excitation in Fusion Reaction
• Signature of smooth transition from diabatic to adiabatic states in heavy-ion fusion reactions at deep subbarrier energies
• Microscopic study of ${}^{16}$O+${}^{16}$O fusion
• Microscopic approach to coupled-channels effects on fusion
• Microscopic sub-barrier fusion calculations for the neutron star crust
• Shape evolution and collective dynamics of quasifission in TDHF
• Novel insights into transfer processes in the reaction 16O+208Pb at sub-barrier energies
• Time-Depentent Hartree-Fock description of heavy ions fusion
• Dependence of fusion on isospin dynamics
• Dynamical deformation effects in subbarrier fusion of ${}^{64}$Ni+${}^{132}$Sn
• Two-body dissipation effects on synthesis of superheavy elements
• Microscopic analysis of sub-barrier fusion enhancement in ${}^{132}$Sn+${}^{40}$Ca vs. ${}^{132}$Sn+${}^{48}$Ca}
• Microscopic analysis of fusion hindrance in heavy systems
• Origin of the narrow, single peak in the fission-fragment mass distribution for ${}^{258}$Fm
• Dynamical effects in fusion with exotic nuclei
• Confronting measured near and sub-barrier fusion cross-sections for 20O+12C with a microscopic method
• Microscopic study of ${}^{40}$Ca+${}^{58,64}$Ni fusion reactions
• Challenges in description of heavy-ion collisions with microscopic time-dependent approaches
• A Universal Damping Mechanism of Quantum Vibrations in Deep Sub-Barrier Fusion Reactions

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