Comment on ``Structure of exotic nuclei and superheavy elements in a relativistic shell model''

Abstract

A recent paper [M. Rashdan, Phys. Rev. C 63, 044303 (2001)] introduces the new parameterization NL-RA1 of the relativistic mean-field model which is claimed to give a better description of nuclear properties than earlier ones. Using this model ^{298}114 is predicted to be a doubly-magic nucleus. As will be shown in this comment these findings are to be doubted as they are obtained with an unrealistic parameterization of the pairing interaction and neglecting ground-state deformation.

2 pages REVTEX, 3 figures, submitted to comment section of Phys. Rev. C. shortened and revised version