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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/36636
Record Status
Checked
Record Id
36636
Title
High precision quadrupole moment measurements of states up to I-20h in the yrast band of Er-158
Contributors
S Shepherd
,
J Simpson
,
A Dewald
,
P Petkov
,
PJ Nolan
,
MA Riley
,
AJ Boston
,
TB Brown
,
RM Clark
,
P Fallon
,
DJ Hartley
,
S Kasemann
,
R Krucken
,
P von Brentano
,
RW Laird
,
ES Paul
,
R Peusquens
Abstract
The lifetimes of excited states in the yrast band in Er-158 up to I-pi = 20(+) have been measured to high precision by means of the Gammasphere spectrometer using the coincidence recoil distance technique. The reaction Sn-122(Ar-40,4n) at a beam energy of 185 MeV was used. The data were analyzed using the differential decay-curve method and transition quadrupole moments were extracted. The quadrupole moment was found to gradually increase by 15% of its 2(+) value before the first vi(13/2) alignment, after which it drops to a constant level 90% of the 2(+) value. Detailed comparisons are made with previous measurements and Ultimate Cranker calculations.
Organisation
CCLRC
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Language
English (EN)
Type
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Year
Journal Article
Phys Rev C
65 (2002): 034320.
doi:10.1103/PhysRevC.65.034320
2002
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