Nuclear asymmetry energy and isovector stiffness within the effective surface approximation

J. P. Blocki, A. G. Magner, P. Ring, and A. A. Vlasenko
Phys. Rev. C 87, 044304 – Published 4 April 2013

Abstract

The isoscalar and isovector particle densities in the effective surface approximation to the average binding energy are used to derive analytical expressions of the surface symmetry energy, the neutron skin thickness, and the isovector stiffness of sharp-edged proton-neutron asymmetric nuclei. For most Skyrme forces the isovector coefficients of the surface energy and of the stiffness are significantly different from the empirical values derived in the liquid drop model. Using the analytical isovector surface energy constants in the framework of the hydrodynamical and the Fermi-liquid droplet models, the mean energies and the sum rules of the isovector giant dipole resonances are found to be in fair agreement with the experimental data.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 24 January 2013

DOI:https://doi.org/10.1103/PhysRevC.87.044304

©2013 American Physical Society

Authors & Affiliations

J. P. Blocki1, A. G. Magner2,*, P. Ring3, and A. A. Vlasenko4

  • 1National Centre for Nuclear Research, Otwock 05-400, Poland
  • 2Institute for Nuclear Research, Kyiv 03680, Ukraine
  • 3Technical Munich University, D-85747 Garching, Germany
  • 4National Technical University of Ukraine “KPI”, Kyiv 03056, Ukraine

  • *magner@kinr.kiev.ua

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 87, Iss. 4 — April 2013

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
×