Electromagnetic transition rates in theN = 80 nucleus58 138 Ce
Author(s) -
T. Alharbi,
P. H. Regan,
Paolo Mason,
N. Mărginean,
Zs. Podolyák,
A. M. Bruce,
E. C. Simpson,
A. Algora,
N. Alazemi,
R. Britton,
M. Bunce,
D. Bucurescu,
N. Cooper,
D. Deleanu,
D. Filipescu,
W. Gelletly,
D. Ghiţă,
T. Glodariu,
G. Ilie,
S. Kisyov,
J. Lintott,
S. Lalkovski,
S. N. Liddick,
C. Mihai,
K. Mulholland,
R. Mărginean,
A. Negreţ,
M. Nakhostin,
C. R. Niţă,
O. J. Roberts,
S. Rice,
J. F. Smith,
L. Stroe,
T. Sava,
C. Townsley,
E. Wilson,
V. Werner,
Maya Zhekova,
N. V. Zamfir
Publication year - 2013
Publication title -
physical review c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.679
H-Index - 235
eISSN - 1089-490X
pISSN - 0556-2813
DOI - 10.1103/physrevc.87.014323
Subject(s) - physics
The half-life of the Iπ=6+ yrast state at Ex=2294 keV in 138Ce has been measured as T1/2=880(19) ps using the fast-timing γ-ray coincidence method with a mixed LaBr3(Ce)-HPGe array. The excited states in 138Ce have been populated by the 130Te(12C,4n) fusion-evaporation reaction at an incident beam energy of 56 MeV. The extracted B(E2;61+→41+)=0.101(24) W.u. value is compared with the predictions of truncated basis shell model calculations and with the systematics of the region. This shows an anomalous behavior compared to the neighboring isotonic and isotopic chains. Half-lives for the yrast 5-, 11+ and 14+ states in 138Ce have also been determined in this work
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