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Dynamics of the linear-chain alpha cluster in microscopic time-dependent relativistic density functional theory

Authors :
Ren, Z. X.
Zhao, P. W.
Meng, J.
Source :
Phys. Lett. B 801, 135194 (2020)
Publication Year :
2020

Abstract

The time-dependent covariant density functional theory in 3D lattice space has been developed and applied to investigate the microscopic dynamics of the linear-chain cluster states for carbon isotopes in the reactions $^4$He$+^8$Be and $^4$He$+^{10}$Be without any symmetry assumptions. By examining the density distribution and its time evolutions, the structure and dynamics of the linear-chain states are analyzed, and the quasiperiodic oscillations of the clusters are revealed. For $^4$He$+^8$Be, the linear-chain states evolve to a triangular configuration and then to a more compact shape. In contrast, for $^4$He$+^{10}$Be, the lifetime of the linear-chain states is much more prolonged due to the dynamical isospin effects by the valence neutrons which slow down the longitudinal oscillations of the clusters and persist the linear-chain states. The dependence of the linear chain survival time and dynamical isospin effects on impact parameters have been illustrated as well.<br />Comment: 14 pages, 5 figures

Subjects

Subjects :
Nuclear Theory
Nuclear Experiment

Details

Database :
arXiv
Journal :
Phys. Lett. B 801, 135194 (2020)
Publication Type :
Report
Accession number :
edsarx.2001.02834
Document Type :
Working Paper
Full Text :
https://doi.org/10.1016/j.physletb.2019.135194