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Potential energy surface and formation of superheavy nuclei with the Skyrme energy-density functional

Authors
  • Peng, Cheng
  • Feng, Zhao-Qing
Type
Published Article
Journal
Communications in Theoretical Physics
Publisher
IOP Publishing
Publication Date
May 01, 2022
Volume
74
Issue
5
Identifiers
DOI: 10.1088/1572-9494/ac6491
Source
ioppublishing
Keywords
Disciplines
  • Nuclear Physics
License
Unknown

Abstract

With the Skyrme energy-density functional theory, the nucleus–nucleus potential is calculated and the potential energy surface is obtained with different effective forces for accurately estimating the formation cross sections of superheavy nuclei in massive fusion reactions. The width and height of the potential pocket are influenced by the Skyrme effective forces SkM, SkM*, SkP, SIII, Ska, and SLy4, which correspond to the different equations of state for the isospin symmetry nuclear matter. It is found that the nucleus–nucleus potential is associated with the collision orientation and Skyrme forces. A more repulsive nuclear potential is pronounced with increasing the incompressible modulus of nuclear matter, which hinders the formation of superheavy nuclei. The available data in the fusion-evaporation reaction of 48Ca+238U are nicely reproduced with the SkM* parameter by implementing the potential into the dinuclear system model.

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