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Related papers: Scission configuration in the self-consistent calc…

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Nuclear fission is still one of the most complex physical processes we can observe in nature due to the interplay of macroscopic and microscopic nuclear properties that decide the result. An example of this coupling is the presence of…

We implement the Fourier shape parametrization within the point-coupling covariant density functional theory to construct the collective space, potential energy surface (PES), and mass tensor, which serve as inputs for the time-dependent…

Nuclear Theory · Physics 2025-03-13 Zeyu Li , Yang Su , Lile Liu , Yongjing Chen , Zhipan Li

An outstanding problem in the theory of nuclear fission is understanding the Hamiltonian dynamics at the scission point. Here we apply the Generator Coordinate Method to calculate decay widths for pre-scission configurations into the…

Nuclear Theory · Physics 2019-10-24 G. F. Bertsch , L. M. Robledo

Background: Fission modes are typically characterised by fragment mass and total kinetic energy centroids, around which a distribution of these variables is observed. These distributions are usually fitted with Gaussian functions. Purpose:…

Nuclear Theory · Physics 2025-03-24 Patrick McGlynn , Cedric Simenel

The density profile of a hot nuclear system produced in intermediate energy heavy ion collisions is studied in a microcanonical formulation with a momentum and density dependent finite range interaction. The caloric curve and the density…

Nuclear Theory · Physics 2008-11-26 S. K. Samaddar , J. N. De , X. Vinas , M. Centelles

The enhancement of the sub-barrier fusion cross sections was explained as the lowering of the dynamical fusion barriers within the framework of the improved isospin-dependent quantum molecular dynamics (ImIQMD) model. The numbers of nucleon…

Nuclear Theory · Physics 2009-09-11 Zhao-Qing Feng , Gen-Ming Jin

The mass asymmetry in the fission of U-236 at low excitation energy is clarified by the analysis of the trajectories obtained by solving the Langevin equations for the shape degrees of freedom. It is demonstrated that the position of the…

Nuclear Theory · Physics 2015-06-23 Y. Aritomo , S. Chiba , F. A. Ivanyuk

Transport of microscopic objects across biological membranes usually involves membrane deformation to enclose the object followed by detachment of the engulfed particle. However, in artificial membranes, this last topological remodelling…

Soft Condensed Matter · Physics 2025-03-25 Florent Fessler , Pierre Muller , Antonio Stocco

The compressibility of nuclear matter has received significant attention in the last decade and a variety of approaches have been employed to extract this fundamental property of matter. Recently, significant differences have emerged…

Nuclear Theory · Physics 2007-05-23 M. M. Sharma

The nuclear symmetry energy plays an important role in the description of the properties of finite nuclei as well as neutron stars. Especially, for low values of baryon density, the accurate description of the crust-core interface strongly…

Nuclear Theory · Physics 2021-08-20 Ch. Margaritis , P. S. Koliogiannis , A. Kanakis-Pegios , Ch. C. Moustakidis

We show that the total kinetic energy (TKE) of nuclei after the spontaneous fission of $^{258}$Fm can be well reproduced using simple assumptions on the quantum collective phase-space explored by the nucleus after passing the fission…

Nuclear Theory · Physics 2017-04-19 Yusuke Tanimura , Denis Lacroix , Sakir Ayik

The scission neutron kinetic energy spectrum is calculated for $^{236}U$ in the frame of the dynamical scission model. The bi-dimensional time dependent Schr\"{o}dinger equation with time dependent potential is used to propagate each…

Nuclear Theory · Physics 2019-03-27 N. Carjan , M. Rizea

We discuss the origin of the narrowness of the single peak at mass-symmetric division in the fragment mass-yield curve for spontaneous fission of $^{258}$Fm. For this purpose, we employ the macroscopic-microscopic model, and calculate a…

Nuclear Theory · Physics 2009-01-22 Takatoshi Ichikawa , Akira Iwamoto , Peter Möller

We present fission-barrier-height calculations for nuclei throught the Periodic Table based on a realistic macroscopic-microscopic model. Compared to other calculations: (1) we use a deformation space of sufficiently high dimension, sampled…

Nuclear Theory · Physics 2009-11-10 Peter Moller , Arnold J. Sierk , Akira Iwamoto

The equation of state of nuclear matter is strongly affected by the presence of a magnetic field. Here we study the equilibrium configuration of asymmetric nuclear matter for a wide range of densities, isospin composition, temperatures and…

Nuclear Theory · Physics 2015-10-02 R. Aguirre , E. Bauer

In this paper the essential theoretical predictions for the nuclear muonic radioactivity are presented by using a special fission-like model similar with that used in description of the pionic emission during fission. Hence, a fission-like…

Nuclear Theory · Physics 2011-01-25 D. B. Ion , M. L. D. Ion , Reveica Ion-Mihai

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

We formulate a microscopic theory of the decay of a compound nucleus through fission which generalizes earlier microscopic approaches of fission dynamics performed in the framework of the adiabatic hypothesis. It is based on the constrained…

Nuclear Theory · Physics 2010-02-17 K. Dietrich , J. -J. Niez , J. -F. Berger

Asymmetric nuclear matter is investigated in the low density region below the nuclear saturation density. Microscopic calculations based on the Dirac Brueckner Hartree-Fock (DBHF) approach with realistic nucleon-nucleon potentials are used…

Nuclear Theory · Physics 2008-11-26 J. Margueron , E. Van Dalen , C. Fuchs

Collisions between amorphous Fe nanoparticles were studied using molecular-dynamics simulation. For head-on collisions of nanoparticles with radii $R =$ 1.4 nm, $R =$ 5.2 nm, and $R =$ 11 nm, sticking was observed at all simulated…

Computational Physics · Physics 2019-02-05 William C. Tucker , Adrienne R. Dove , Patrick K. Schelling
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