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相关论文: Microscopic study of $^{40}$Ca+$^{58,64}$Ni fusion…

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Background: Near-barrier fusion can be strongly affected by the coupling between relative motion and internal degrees of freedom of the collision partners. The time-dependent Hartree-Fock (TDHF) theory and the coupled-channels (CC) method…

核理论 · 物理学 2013-12-09 C. Simenel , M. Dasgupta , D. J. Hinde , E. Williams

We provide a microscopic description of the fusion reactions between $^{40,48}$Ca and $^{78}$Ni. The internuclear potentials are obtained using the density-constrained (DC) time-dependent Hartree-Fock (TDHF) approach and fusion cross…

核理论 · 物理学 2022-07-28 Xiang-Xiang Sun , Lu Guo , A. S. Umar

We study fusion reactions of the $^{64}$Ni+$^{64}$Ni system using the density-constrained time-dependent Hartree-Fock (TDHF) formalism. In this formalism the fusion barriers are directly obtained from TDHF dynamics. In addition, we…

核理论 · 物理学 2008-11-26 A. S. Umar , V. E. Oberacker

Multinucleon transfer processes in heavy-ion reactions at energies slightly above the Coulomb barrier are investigated in a fully microscopic framework of the time-dependent Hartree-Fock (TDHF) theory. Transfer probabilities are calculated…

核理论 · 物理学 2016-05-25 Kazuyuki Sekizawa , Kazuhiro Yabana

With the recent availability of state-of-the-art heavy-ion stable and radioactive beams, there has been a renew interest in the investigation of nuclear reactions with heavy ions. I first present the role of inelastic and transfer channel…

核理论 · 物理学 2013-06-13 C. Beck

We study heavy-ion fusion reactions at energies near the Coulomb barrier, in particular with neutron-rich radioactive ion beams. Dynamic microscopic calculations are carried out on a three-dimensional lattice using the Density-Constrained…

核理论 · 物理学 2015-06-11 V. E. Oberacker , A. S. Umar , R. Keser

In the present contribution, the effect of pairing on nuclear transfer and fusion reactions close to the Coulomb barrier is discussed. A Time-Dependent Hartree-Fock + BCS (TDHF+BCS) microscopic theory has been developed to incorporate…

核理论 · 物理学 2015-06-18 Guillaume Scamps , Denis Lacroix

The Time-dependent Hartree-Fock (TDHF) theory is applied to the study of heavy ion collisions at energies around the Coulomb barrier. The competition between fusion and nucleon transfer mechanisms is investigated. For intermediate mass…

核理论 · 物理学 2015-06-11 Cédric Simenel , A. Wakhle , Benoît Avez

With the recent availability of state-of-the-art radioactive ion beams, there has been a renew interest in the investigation of nuclear reactions with heavy ions near the Coulomb barrier. The role of inelastic and transfer channel couplings…

核理论 · 物理学 2015-03-20 C. Beck

We analyze the details of mass exchange in the vicinity of the Coulomb barrier for heavy-ion collisions involving neutron-rich nuclei using the time-dependent Hartree-Fock (TDHF) theory. We discuss the time-dependence of transfer and show…

核理论 · 物理学 2008-11-26 A. S. Umar , V. E. Oberacker , J. A. Maruhn

We describe low-lying collective excitations of atomic nuclei with the multi-reference covariant density functional theory, and combine them with coupled-channels calculations for heavy-ion fusion reactions at energies around the Coulomb…

核理论 · 物理学 2015-04-16 K. Hagino , J. M. Yao

The reaction mechanism of deep-inelastic multinucleon transfer processes in the $^{16}$O+$^{27}$Al reaction at an incident $^{16}$O energy ($E_{\rm lab}=134$ MeV) substantially above the Coulomb barrier has been studied both experimentally…

Within the Time Dependent Hartree Fock (TDHF) approach, we investigate the impact of several ingredients of the nuclear effective interaction, such as incompressibility, symmetry energy, effective mass, derivative of the Lane potential and…

核理论 · 物理学 2018-09-12 H. Zheng , S. Burrello , M. Colonna , D. Lacroix , G. Scamps

We investigate heavy-ion multinucleon transfer reactions using the coupled-channels formalism. We first use the semi-classical approximation and show that a direct coupling between the entrance and the pair transfer channels improves a fit…

核理论 · 物理学 2015-11-25 Guillaume Scamps , Kouichi Hagino

These lecture notes are addressed to PhD student and/or researchers who want a general overview of microscopic approaches based on mean-field and applied to nuclear dynamics. Our goal is to provide a good description of low energy heavy-ion…

核理论 · 物理学 2009-04-20 Cédric Simenel , Benoît Avez , Denis Lacroix

The nuclear fusion is a reaction to form a compound nucleus. It plays an important role in several circumstances in nuclear physics as well as in nuclear astrophysics, such as synthesis of superheavy elements and nucleosynthesis in stars.…

核理论 · 物理学 2016-07-20 K. Hagino , N. Rowley , J. M. Yao

Classical mechanics and Time Dependent Hartree-Fock (TDHF) calculations of heavy ions collisions are performed to study the rotation of a deformed nucleus in the Coulomb field of its partner. This reorientation is shown to be independent on…

核理论 · 物理学 2009-11-10 Cedric Simenel , Philippe Chomaz , Gilles De France

We study fusion reactions of the $^{64}$Ni+$^{132}$Sn system using the recently introduced density constrained time-dependent Hartree-Fock formalism. In this formalism the fusion barriers are directly obtained from TDHF dynamics. In…

核理论 · 物理学 2008-11-26 A. S. Umar , V. E. Oberacker

Background: Heavy-ion fusion reactions involving heavy nuclei at energies around the Coulomb barrier exhibit fusion hindrance, where the probability of compound nucleus formation is strongly hindered compared with that in light- and…

核理论 · 物理学 2017-11-10 Kouhei Washiyama

Background: Multinucleon transfer (MNT) and quasifission (QF) processes are dominant processes in low-energy collisions of two heavy nuclei. They are expected to be useful to produce neutron-rich unstable nuclei. Nuclear dynamics leading to…

核理论 · 物理学 2016-05-25 Kazuyuki Sekizawa , Kazuhiro Yabana
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