{ "id": "nucl-th/9910026", "version": "v1", "published": "1999-10-08T22:15:24.000Z", "updated": "1999-10-08T22:15:24.000Z", "title": "Pairing Gap and Polarisation Effects", "authors": [ "K. Rutz", "M. Bender", "P. -G. Reinhard", "J. A. Maruhn" ], "comment": "5 pages REVTeX, 5 eps figures, accepted for publication in Phys. Lett. B", "journal": "Phys.Lett. B468 (1999) 1-6", "categories": [ "nucl-th" ], "abstract": "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.", "revisions": [ { "version": "v1", "updated": "1999-10-08T22:15:24.000Z" } ], "analyses": { "subjects": [ "21.30.Fe", "21.60.-n", "24.10.Jv" ], "keywords": [ "pairing gap", "relativistic mean-field model", "odd nucleon produces", "pairing strength", "time-odd polarisation effects" ], "tags": [ "journal article" ], "publication": { "doi": "10.1016/S0370-2693(99)01190-9" }, "note": { "typesetting": "RevTeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "inspire": 508378 } } }