Dissipation dynamics and spin-orbit force in time-dependent Hartree-Fock theory

Abstract

We investigate the one-body dissipation dynamics in heavy-ion collisions of ${}^{16}\mathrm{O}$+${}^{16}\mathrm{O}$ using a fully three-dimensional time-dependent Hartree-Fock (TDHF) theory with the modern Skyrme energy functional and without any symmetry restrictions. The energy dissipation is revealed to decrease in deep-inelastic collisions of the light systems as the bombarding energy increases owing to the competition between collective motion and single-particle degrees of freedom. The role of spin-orbit force is given particular emphasis in deep-inelastic collisions. The spin-orbit force causes a significant enhancement of the dissipation. The time-even coupling of spin-orbit force plays a dominant role at low energies, while the influence of time-odd terms is notable at high energies. About 40-65\% of the total dissipation depending on the different parameter sets is predicted to arise from the spin-orbit force. The theoretical fusion cross section has a reasonably good agreement with the experimental data, considering that no free parameters are adjusted to reaction dynamics in the TDHF approach.

arXiv commentaccepted for publication in Phys. Rev. C

References in corpus (38)

• Nuclear energy density optimization: Large deformations
• Nuclear Quantum Many-Body Dynamics: From Collective Vibrations to Heavy-Ion Collisions
• 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
• An Improved Quantum Molecular Dynamics Model and its Applications to Fusion Reaction near Barrier
• Energy dependence of nucleus-nucleus potential close to the Coulomb barrier
• Formation and dynamics of fission fragments
• Linear response theory in the continuum for deformed nuclei: Green's function vs. time-dependent Hartree-Fock with the absorbing-boundary condition
• 3-D unrestricted TDHF fusion calculations using the full Skyrme interaction
• Heavy-ion interaction potential deduced from density-constrained TDHF calculation
• Particle number fluctuations and correlations in transfer reactions obtained using the Balian-Vénéroni variational principle
• Energy dependence of potential barriers and its effect on fusion cross-sections
• Quantum Calculation of Dipole Excitation in Fusion Reaction
• Entrance Channel Dynamics of Hot and Cold Fusion Reactions Leading to Superheavy Elements
• Microscopic study of ${}^{16}$O+${}^{16}$O fusion
• Microscopic approach to coupled-channels effects on fusion
• Spin-Excitation Mechanisms in Skyrme-Force Time-Dependent Hartree-Fock
• One-body energy dissipation in fusion reaction from mean-field theory
• Microscopic sub-barrier fusion calculations for the neutron star crust
• Fluctuation and dissipation dynamics in fusion reactions from stochastic mean-field approach
• Non-Gaussian Fluctuation and Non-Markovian Effect in the Nuclear Fusion Process: Langevin Dynamics Emerging from Quantum Molecular Dynamics Simulations
• Time-Dependent Response Calculations of Nuclear Resonances
• Non-Linear Vibrations in Nuclei
• Mass dispersion in transfer reactions with a stochastic mean-field theory
• The unrestricted Skyrme-tensor time-dependent Hartree-Fock and its application to the nuclear response from spherical to triaxial nuclei
• Probing neutron correlations through nuclear break-up
• Microscopic Calculation of Pre-Compound Excitation Energies for Heavy-Ion Collisions
• Conservation Properties in the Time-Dependent Hartree Fock Theory
• Melting or nucleon transfer in fusion of heavy nuclei?
• Nuclear Giant Resonances and Linear Response
• Boost-invariant mean field approximation and the nuclear Landau-Zener effect
• Couplings between dipole and quadrupole vibrations in tin isotopes
• Mass dispersions from giant dipole resonances using the Balian-Veneroni variational approach
• Single-particle dissipation in TDHF studied from a phase-space perspective
• Enhanced Tensor-Force Contribution in Collision Dynamics
• Dipole resonances in oxygen isotopes in time-dependent density-matrix theory
• Equilibration in the time-dependent Hartree-Fock approach probed with the Wigner distribution function

Cited by in corpus (32)

• Heavy-ions collisions and fission dynamics with the time-dependent Hartree-Fock theory and its extensions
• TDHF Theory and Its Extensions for the Multinucleon Transfer Reaction: a Mini Review
• Microscopic phase-space exploration modeling of ${}^{258}$Fm spontaneous fission
• New neutron-rich isotope production in ${}^{154}$Sm+${}^{160}$Gd
• Low-Energy Heavy-Ion Reactions and the Skyrme Effective Interaction
• Microscopic studies of production cross sections in multinucleon transfer reaction ${}^{58}$Ni+${}^{124}$Sn
• Systematics of capture and fusion dynamics in heavy-ion collisions
• The Role of Tensor Force in Heavy-Ion Fusion Dynamics
• Enhanced nucleon transfer in tip collisions of ${}^{238}$U+${}^{124}$Sn
• Isotopic trends of quasifission and fusion-fission in the reactions ${}^{48}$Ca+${}^{239,244}$Pu
• The Skyrme Tensor Force in Heavy Ion Collisions
• Connecting the nuclear EoS to the interplay between fusion and quasifission processes in low-energy nuclear reactions
• Production of proton-rich nuclei in the vicinity of 100Sn via multinucleon transfer reactions
• Production mechanism of neutron-rich nuclei around $N=126$ in multi-nucleon transfer reaction ${}^{132}$Sn + ${}^{208}$Pb
• The influence of tensor force on the microscopic heavy-ion interaction potential
• Time-dependent covariant density functional theory in 3D lattice space: benchmark calculation for 16O + 16O reaction
• Impact of tensor force on quantum shell effects in quasifission reactions
• Energy-Dependence of Nucleus-Nucleus Potential and Friction Parameter in Fusion Reactions
• Microscopic study of the compound nucleus formation in cold-fusion reactions
• Microscopic study on fusion reactions ${}^{40,48}\mathrm{Ca}+{}^{78}\mathrm{Ni}$ and the effect of tensor force
• Dynamical effects of spin-dependent interactions in low- and intermediate-energy heavy-ion reactions
• Theoretical study of fusion reactions ${}^{32}$S + ${}^{94,96}$Zr and ${}^{40}$Ca + ${}^{94,96}$Zr and quadrupole deformation of ${}^{94}$Zr
• Nuclear Quantum Many-Body Dynamics: From Collective Vibrations to Heavy-Ion Collisions (2nd edition)
• Nucleon spin polarization in intermediate-energy heavy-ion collisions
• Theoretical study of the capture of stable ${}^{39}$K and neutron-rich radioactive ${}^{46}$K by ${}^{181}$Ta
• Effects of the tensor force on low-energy heavy-ion fusion reactions: A mini review
• Microscopic Study of Spin Transfer in Near-Barrier Nuclear Reactions
• Time-dependent mean field determination of the excitation energy in transfer reactions: application to the reaction ${}^{238}$U on ${}^{12}$C at 6.14 MeV/A
• Role of the Surface Energy in Heavy-Ion Collisions
• Continuum damping effects in nuclear collisions associated with twisted boundary conditions
• Impact of octupole correlation on the inverse quasifission in ${}^{160}\text{Gd}+{}^{186}\text{W}$ collisions
• Microscopic quasifission dynamics of the ${}^{54}\text{Cr}+{}^{243}\text{Am}$ reaction