par Rutz, K.;Bender, Michaël ;Reinhard, Paul Gerhard;Maruhn, Joachim Alexander
Référence Physics letters. Section B, 468, 1-2, page (1-6)
Publication Publié, 1999
Article révisé par les pairs
Résumé : The phenomenological adjustment of the nuclear pairing strength is usually performed with respect to the odd-even staggering of the binding energies. We find that the results strongly depend on the way in which the ground states of the odd nuclei are computed. A thorough calculation including all time-even and time-odd polarisation effects induced by the odd nucleon produces about 30% reduced odd-even staggering as compared to the standard spherical calculations in the relativistic mean-field model. The pairing strength must be enhanced by about 20% to compensate for that effect. The enhanced strength has dramatic consequences for the predicted deformation properties of the underlying mean-field models, possibly implying that new adjustments of their parameters become necessary as well. © 1999 Published by Elsevier Science B.V. All rights reserved.