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New states in heavy Cd isotopes and evidence for weakening of the N = 82 shell structure

New states in heavy Cd isotopes and evidence for weakening of the N = 82 shell structure

Authors :
T. Kautzsch
W.B. Walters
M. Hannawald
K.-L. Kratz
V.I. Mishin
V.N. Fedoseyev
W. Böhmer
Y. Jading
P. Van Duppen
B. Pfeiffer
A. Wöhr
P. Möller
I. Klöckl
V. Sebastian
U. Köster
M. Koizumi
J. Lettry
H.L. Ravn
null the ISOLDE Collaboration
Source :
The European Physical Journal A. 9:201-206
Publication Year :
2000
Publisher :
Springer Science and Business Media LLC, 2000.

Abstract

A chemically selective laser ion source has been used in a β-decay study of heavy Ag isotopes into even-even Cd nuclides. Gamma-spectroscopic techniques in time-resolving event-by-event and multiscaling modes have permitted the identification of the first 2+ and 4+ levels in 126Cd78, 128Cd80, and tentatively the 2+ state in 130Cd82. From a comparison of these new states in 48Cd with the E(2+) and E(4+)/E(2+) level systematics of 46Pd and 52Te isotopes and several recent model predictions, possible evidence for a weakening of the spherical N = 82 neutron-shell below double-magic 132Sn is obtained.

Details

ISSN :
1434601X and 14346001
Volume :
9
Database :
OpenAIRE
Journal :
The European Physical Journal A
Accession number :
edsair.doi...........26f545ab4ce7594f3f00e6791fba2ebf
Full Text :
https://doi.org/10.1007/s100500070038