• Rapid Communication

Superfluid dynamics of Fm258 fission

Guillaume Scamps, Cédric Simenel, and Denis Lacroix
Phys. Rev. C 92, 011602(R) – Published 23 July 2015

Abstract

The theoretical description of nuclear fission remains one of the major challenges of quantum many-body dynamics. The motion through the fission barrier is followed by a fast, nonadiabatic descent of the potential between the fragments. The latter stage is crucial as it generates most of the excitation energy in the fragments. The superfluid dynamics in the latter stage of fission is obtained from the time-dependent Hartree-Fock theory including BCS dynamical pairing correlations. The fission modes of the Fm258 nucleus are studied. The resulting fission fragment characteristics show good agreement with experimental data. Quantum shell effects are shown to play a crucial role in the dynamics and formation of the fragments. The importance of quantum fluctuations beyond the independent particle and quasiparticle picture is emphasized and qualitatively studied.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 15 January 2015
  • Revised 28 April 2015

DOI:https://doi.org/10.1103/PhysRevC.92.011602

©2015 American Physical Society

Authors & Affiliations

Guillaume Scamps*

  • GANIL, CEA/DSM, and CNRS/IN2P3, Boîte Postale 55027, 14076 Caen Cedex, France, and Department of Physics, Tohoku University, Sendai 980-8578, Japan

Cédric Simenel

  • Department of Nuclear Physics, Research School of Physics and Engineering Australian National University, Canberra, Australian Capital Territory 2601, Australia

Denis Lacroix

  • Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, F-91406 Orsay Cedex, France

  • *scamps@nucl.phys.tohoku.ac.jp
  • cedric.simenel@anu.edu.au
  • lacroix@ipno.in2p3.fr

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 92, Iss. 1 — July 2015

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×