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Related papers: Fission barriers with Weizs\"acker-Skyrme mass mod…

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Based on a systematic Hartree-Fock+BCS calculation, new perturbation scheme is proposed to modify the existing Skyrme-type effective nuclear force. Much attention is paid to have a better description of fission property of heavy nuclei. In…

Nuclear Theory · Physics 2021-01-07 Kun Ratha Kean , Takashi Nishikawa , Yoritaka Iwata

Based on the Skyrme energy density functional and the reaction $Q$-value, we propose an effective nucleus-nucleus potential for describing the capture barrier in heavy-ion fusion processes. The 443 extracted barrier heights are well…

Nuclear Theory · Physics 2024-09-20 Ning Wang , Jinming Chen , Min Liu

The mass and total kinetic energy distributions of the fission fragments in the fission of even-even isotopes of superheavy elements from Hs (Z=108) to Og (Z=118) are estimated using a pre-scission point model. We restrict to nuclei for…

Nuclear Theory · Physics 2019-06-19 N. Carjan , F. A. Ivanyuk , Yu. Ts. Oganessian

We evaluate the performance of modern nuclear energy density functionals for predicting inner and outer fission barrier heights and energies of fission isomers of even-even actinides. For isomer energies and outer barrier heights, we find…

Nuclear Theory · Physics 2018-02-06 J. McDonnell , N. Schunck , W. Nazarewicz

The fission barrier energy is a fundamental property of nuclear structure that governs the stability of nuclei against fission, directly affecting their spontaneous fission half-lives and the formation of superheavy elements. However,…

Nuclear Theory · Physics 2025-11-25 Serkan Akkoyun , Cafer Mert Yeşilkanat , Paul Stevenson

Static fission barriers for 95 even-even transuranium nuclei with charge number $Z=94-118$ have been systematically investigated by means of pairing self-consistent Woods-Saxon-Strutinsky calculations using the potential energy surface…

Nuclear Theory · Physics 2018-04-24 Qing-Zhen Chai , Wei-Juan Zhao , Min-Liang Liu , Hua-Lei Wang

The dependence of fission barriers on the excitation energy of the compound nucleus impacts the survival probability of superheavy nuclei synthesized in heavy-ion fusion reactions. In this work, we investigate the isentropic fission…

Nuclear Theory · Physics 2009-06-30 J. C. Pei , W. Nazarewicz , J. A. Sheikh , A. K. Kerman

We present a large scale survey of life-times for spontaneous fission in the regime of super-heavy elements (SHE), i.e. nuclei with Z=104-122. This is done on the basis of the Skyrme-Hartree-Fock model. The axially symmetric fission path is…

Nuclear Theory · Physics 2010-02-02 N. Schindzielorz , J. Erler , P. Klüpfel , P. -G. Reinhard , G. Hager

Using the different versions of phenomenological proximity potential as well as other parametrizations within the proximity concept, we perform a detailed comparative study of fusion barriers for asymmetric colliding nuclei with asymmetry…

Nuclear Theory · Physics 2014-11-21 Ishwar Dutt , Rajeev K. Puri

We investigate the structure of the potential energy surfaces of the superheavy nuclei 258Fm, 264Hs, (Z=112,N=166), (Z=114,N=184), and (Z=120,N=172) within the framework of self-consistent nuclear models, i.e. the Skyrme-Hartree-Fock…

Nuclear Theory · Physics 2008-11-26 M. Bender , K. Rutz , P. -G. Reinhard , J. A. Maruhn , W. Greiner

The fragment yield ratios were investigated in the fission of 238,233U targets induced by 14 MeV neutrons. The isoscaling behavior was typically observed for the isotopic chains of fragments ranging from the proton-rich to the most…

Nuclear Experiment · Physics 2009-11-10 M. Veselsky , G. A. Souliotis , M. Jandel

Large-scale models of nuclear structure are currently the only way to provide consistent datasets for the many properties of thousands of exotic nuclei that are required by nucleosynthesis simulations. In [W.Ryssens et al., Eur. Phys. J. A…

Nuclear Theory · Physics 2023-05-09 Wouter Ryssens , Guillaume Scamps , Stephane Goriely , Michael Bender

Fission-fragment mass distributions are asymmetric in fission of typical actinide nuclei for nucleon number $A$ in the range $228 \lnsim A \lnsim 258$ and proton number $Z$ in the range $90\lnsim Z \lnsim 100$. For somewhat lighter systems…

Nuclear Theory · Physics 2015-06-04 Takatoshi Ichikawa , Akira Iwamoto , Peter Möller , Arnold J. Sierk

Fission-related phenomena of heavy $\Lambda$ hypernuclei are discussed with the constraint Skyrme-Hartree-Fock+BCS (SHF+BCS) method, in which a similar Skyrme-type interaction is employed also for the interaction between a $\Lambda$…

Nuclear Theory · Physics 2009-11-25 F. Minato , S. Chiba , K. Hagino

This work attempts to overcome the existing inconsistencies in modelling decay of fissile nucleus by inclusion of important physical effects in the model and through a systematic analysis of a large set of data over a wide range of CN mass…

Nuclear Theory · Physics 2019-02-20 Tathagata Banerjee , S. Nath , Santanu Pal

A detailed study fusion of neutron-rich colliding nuclei is performed using various isospin dependent potentials. For present study, Three different series namely, Ne-Ne, Ca-Ca, and Zr-Zr are taken into account and N/Z ratio.A monotonous…

Nuclear Theory · Physics 2011-04-20 Maninder kaur

Background: Recent experiments on beta-delayed fission in the mercury-lead region and the discovery of asym- metric fission in 180 Hg [1] have stimulated theoretical interest in the mechanism of fission in heavy nuclei. Purpose: We study…

Nuclear Theory · Physics 2015-06-05 M. Warda , A. Staszczak , W. Nazarewicz

Accurate determination of nuclear fission barrier heights is essential for understanding nuclear stability, fission dynamics, and nucleosynthesis. However, theoretical models such as the Extended Thomas-Fermi plus Strutinsky Integral…

Nuclear Theory · Physics 2026-04-21 Kun Ratha Kean , Yoritaka Iwata

We tabulate the atomic mass excesses and binding energies, ground-state shell-plus-pairing corrections, ground-state microscopic corrections, and nuclear ground-state deformations of 9318 nuclei ranging from $^{16}$O to $A=339$. The…

Nuclear Theory · Physics 2016-05-04 P. Moller , A. J. Sierk , T. Ichikawa , H. Sagawa

Potential energy surfaces and fission barriers of superheavy nuclei are analyzed in the macroscopic-microscopic model. The Lublin-Strasbourg Drop (LSD) is used to obtain the macroscopic part of the energy, whereas the shell and pairing…