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Angular-correlation and coincidence studies of excited 0/sup +/ and other levels in the transitional Ce nuclides /sup 142/Ce, /sup 144/Ce, /sup 146/Ce and /sup 148/Ce

Conference ·
OSTI ID:6054854
; ;
The decays of the neutron-rich nuclides /sup 142/La, /sup 144/La, /sup 146/La and /sup 148/La to the levels of the transitional nuclides /sup 142/Ce, /sup 144/Ce, /sup 146/Ce and /sup 148/Ce, respectively, have been studied using mass-separated sources. Angular correlation studies have been employed to identify new excited 0/sup +/ levels in /sup 146/Ce and support spin and parity assignments for 1/sup -/, 3/sup -/, 2/sup +/, 3/sup +/, 4/sup +/ and 6/sup +/ levels in /sup 144/Ce and /sup 146/Ce. An excited 0/sup +/ level in /sup 148/Ce is indicated by coincidence ratios and electron studies, while no clear evidence can be found for the location of an excited 0/sup +/ level below 2 MeV in /sup 144/Ce. The resulting isotonic and isotopic systematics are discussed in terms of the transition from the closed shells at N = 82 and Z = 50 to the region of deformed nuclides.
Research Organization:
Brookhaven National Lab., Upton, NY (USA); Maryland Univ., College Park (USA); Clark Univ., Worcester, MA (USA)
DOE Contract Number:
AC02-76CH00016
OSTI ID:
6054854
Report Number(s):
BNL-29690; CONF-810649-9; ON: DE81027306
Country of Publication:
United States
Language:
English

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Related Subjects

651723* -- Nuclear Properties & Reactions
A=90-149
Experimental-- Energy Levels & Transitions-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CERIUM 142
CERIUM 144
CERIUM 146
CERIUM 148
CERIUM ISOTOPES
CORRELATIONS
DATA
DAYS LIVING RADIOISOTOPES
ENERGY LEVELS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTONIC NUCLEI
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NUCLEI
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SECONDS LIVING RADIOISOTOPES
SPIN
STABLE ISOTOPES