학술논문
Isospin Dependence in the Odd-Even Staggering of Nuclear Binding Energies
Document Type
Working Paper
Author
Litvinov, Yu. A.; Buervenich, T. J.; Geissel, H.; Novikov, Yu. N.; Patyk, Z.; Scheidenberger, C.; Attallah, F.; Audi, G.; Beckert, K.; Bosch, F.; Falch, M.; Franzke, B.; Hausmann, M.; Kerscher, Th.; Klepper, O.; Kluge, H. -J.; Kozhuharov, C.; Loebner, K. E. G.; Madland, D. G.; Maruhn, J. A.; Muenzenberg, G.; Nolden, F.; Radon, T.; Steck, M.; Typel, S.; Wollnik, H.
Source
Phys.Rev.Lett. 95 (2005) 042501
Subject
Language
Abstract
The FRS-ESR facility at GSI provides unique conditions for precision measurements of large areas on the nuclear mass surface in a single experiment. Values for masses of 604 neutron-deficient nuclides (30<=Z<=92) were obtained with a typical uncertainty of 30 microunits. The masses of 114 nuclides were determined for the first time. The odd-even staggering (OES) of nuclear masses was systematically investigated for isotopic chains between the proton shell closures at Z=50 and Z=82. The results were compared with predictions of modern nuclear models. The comparison revealed that the measured trend of OES is not reproduced by the theories fitted to masses only. The spectral pairing gaps extracted from models adjusted to both masses, and density related observables of nuclei agree better with the experimental data.
Comment: Physics Review Letters 95 (2005) 042501 http://link.aps.org/abstract/PRL/v95/e042501
Comment: Physics Review Letters 95 (2005) 042501 http://link.aps.org/abstract/PRL/v95/e042501