CERN Accelerating science

Article
Title	Nuclear masses and all that : an excursion with many interactions with Rick
Author(s)	Heyde, Kris L G ; Fossion, R ; García-Ramos, J E
Affiliation	(Dept of Subatomic & Radiat Phys, Univ. Gent, Belgium)
Publication	2002
In:	AIP Conf. Proc. 638 (2002) 161-167
In:	International Conference on Nuclear Structure, Grand Teton, WY, USA, 22 - 25 May 2002, pp.161-168
DOI	10.1063/1.1517956
Subject category	Nuclear Physics - Experiment
Accelerator/Facility, Experiment	CERN ISOLDE
Abstract	In the present contribution, we show that, although the spectroscopic properties of the monopole pairing force and a zero range delta function interaction are very similar, results for binding energies when filling up a major shell are radically different past midshell. This has significant consequences for understanding the masses and binding energies of long isotopic chains of nuclei that will be accessible with advanced exotic beam facilities. Consequently, we describe a new method to derive two neutron separation energies S/sub 2n/, treating ground state properties as well as excited state properties in nuclei, in a consistent way. Results for the whole rare-earth mass regions are presented. The recent high precision results that have been obtained at ISOLDE in the neutron deficient Pb region will be discussed and present a challenge to understand the specific mass trend. (30 refs).