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We present an in-depth investigation of heavy-ion fusion dynamics using a six-dimensional Langevin framework that enables unrestricted motion of the asymmetry parameter. The stochastic formalism naturally incorporates friction effects and…

Nuclear Theory · Physics 2025-02-07 Yannen Jaganathen , Michał Kowal , Krzysztof Pomorski

The generation of angular momentum in fissioning nuclei is not well understood. The predictions of different models disagree, particularly concerning the correlation between the fragments' angular momenta. In this article, a time-dependent…

Nuclear Theory · Physics 2023-12-20 Guillaume Scamps , George Bertsch

Selected aspects of the description of neutron-induced fission in 240Pu in the framework of the nuclear energy density functional theory at finite temperature are presented. In particular, we discuss aspects pertaining to the choice of…

Nuclear Theory · Physics 2013-04-18 N. Schunck

\item[Background] Multinucleon transfer reaction at low-energy collisions is considered to be a promising method for the production of new exotic nuclei, which are difficult to be produced by other methods. The theoretical studies are…

Nuclear Theory · Physics 2019-09-04 Zhenji Wu , Lu Guo

A set of relativistic mean field models is constructed including the Hartree and Hartree-Fock approximation accounting for the exchange of isoscalar and isovector mesons as well as the pion. Density dependent coupling functions are…

Nuclear Theory · Physics 2011-09-02 E. N. E. van Dalen , H. Müther

We present a time-dependent localized Hartree-Fock density-functional linear response approach for the treatment of photoionization of atomic systems. This approach employs a spin-dependent localized Hartree-Fock (SLHF) exchange potential…

Quantum Physics · Physics 2015-05-13 Zhongyuan Zhou , Shih-I Chu

We employ a microscopic approach that examines the impact of isospin dynamics on the process of low energy nuclear fusion along an isotope chain and dependence on deformation. Our method utilizes the density constrained time-dependent…

Nuclear Theory · Physics 2023-10-13 Richard Gumbel , Christian Ross , A. S. Umar

Nucleon form factors are evaluated in the spacelike region in a light-front framework. Our phenomenological model is based on a relativistic formulation of the Hamiltonian dynamics. The baryon dynamics is solved in the CMS with relativistic…

Nuclear Theory · Physics 2012-08-27 L. Prado,

In this contribution, we present the main relations of the Langevin approach to the description of fission or fusion-fission reactions. The results of Langevin calculations are shown for the mass distributions of fission fragments of…

Nuclear Theory · Physics 2023-01-05 F. A. Ivanyuk , S. V. Radionov , C. Ishizuka , S. Chiba

Nuclear structure models built from phenomenological mean fields, the effective nucleon-nucleon interactions (or Lagrangians), and the realistic bare nucleon-nucleon interactions are reviewed. The success of covariant density functional…

Nuclear Theory · Physics 2019-10-14 Shihang Shen , Haozhao Liang , Wen Hui Long , Jie Meng , Peter Ring

We study a multi-determinant approach to the time evolution of the nuclear wave functions (TDMD). We employ the Dirac variational principle and use as anzatz for the nuclear wave-function a linear combination of Slater determinants and…

Nuclear Theory · Physics 2013-06-27 Giovanni Puddu

Modeling fission properties, such as barriers and rates, is highly challenging. The most microscopic methods available are based on energy density functionals (EDFs) and rely on a limited set of collective coordinates to describe the…

Nuclear Theory · Physics 2026-04-29 Adrián Sánchez-Fernández , Wouter Ryssens , Stéphane Goriely

We present a new numerical tool designed to probe the dense layers of neutron star crusts. It is based on the time-dependent Hartree-Fock-Bogoliubov theory with generalized Skyrme nuclear energy-density functionals of the Brussels-Montreal…

Nuclear Theory · Physics 2024-12-05 Daniel Pȩcak , Agata Zdanowicz , Nicolas Chamel , Piotr Magierski , Gabriel Wlazłowski

We examine nuclear scission within a fully quantum-mechanical microscopic framework, focusing on the non-local aspects of the theory. Using $^{240}\textrm{Pu}$ hot fission as an example, we discuss the identification of the fragments and…

Nuclear Theory · Physics 2015-05-27 W. Younes , D. Gogny

Time-frequency (TF) analysis is a powerful tool for exploring ultrafast dynamics in atoms and molecules. While some TF methods have demonstrated their usefulness and potential in several of quantum systems, a systematic comparison among…

Data Analysis, Statistics and Probability · Physics 2021-06-21 Yae-lin Sheu , Hau-tieng Wu , Liang-Yan Hsu

Recent experiments revealed intriguing similarities in the $^{64}$Ni+$^{207}$Pb, $^{132}$Xe+$^{208}$Pb, and $^{238}$U+$^{238}$U reactions at energies around the Coulomb barrier. The experimental data indicate that for all systems…

Nuclear Theory · Physics 2017-03-01 Kazuyuki Sekizawa , Sophia Heinz

The coupled dynamics of the isovector and isoscalar giant quadrupole resonances and low lying modes (including scissors) are studied with the help of the Wigner Function Moments (WFM) method generalized to take into account pair…

Nuclear Theory · Physics 2015-05-13 E. B. Balbutsev , L. A. Malov , P. Schuck , M. Urban

This article concerns the time-dependent Hartree-Fock (TDHF) approximation of single-particle dynamics in systems of interacting fermions. We find that the TDHF approximation is accurate when there are sufficiently many particles and the…

Quantum Physics · Physics 2015-02-25 Claude Bardos , Francois Golse , Alex D. Gottlieb , Norbert J. Mauser

A statistical model description of heavy ion induced fusion-fission reactions is presented where shell effects, collective enhancement of level density, tilting away effect of compound nuclear spin and dissipation are included. It is shown…

Nuclear Theory · Physics 2017-12-01 Tathagata Banerjee , S. Nath , Santanu Pal

[Background] While the tensor interaction has been shown to significantly affect the nuclear structure of exotic nuclei, its influence on nuclear reactions has only recently been investigated. The primary reason for this neglect is the fact…

Nuclear Theory · Physics 2019-11-27 K. Godbey , Lu Guo , A. S. Umar
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