Evidence for weak coupling in sup 145 Pm

Journal Article · Wed Apr 01 00:00:00 EST 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.45.1619· OSTI ID:7043918

Glasmacher, T; Caussyn, D D; Cottle, P D; Johnson, T D; Kemper, K W; Womble, P C ^[1]

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1. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)

States in {sup 145}Pm were studied in the reaction {sup 130}Te({sup 19}F,4{ital n}) at a beam energy of 75 MeV using techniques of in-beam {gamma}-ray and conversion electron spectroscopy. Measurements were made of {gamma}-{gamma} coincidences, {gamma}-ray angular distributions, conversion electrons, and excitation functions between 70 and 85 MeV. The reduced {ital B}({ital E}3) transition strength for the 795 keV (11/2{sup {minus}}{r arrow}5/2{sub g.s.}{sup +}) transition was determined to be 7.8(18) Weisskopf units, supporting the interpretation of the 11/2{sup {minus}} state as a {ital h}{sub 11/2} proton state. A negative-parity sequence built on the 11/2{sup {minus}} state as well as eleven new states above the 1503 keV 15/2{sup +} state were found. A weak coupling model can explain the structure of the deduced decay scheme up to an energy of 2.5 MeV.

• OSTI ID: 7043918
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 45:4; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
PROMETHIUM 145
WEAK-COUPLING MODEL
TELLURIUM 130 TARGET
FLUORINE 19 REACTIONS
ANGULAR DISTRIBUTION
COINCIDENCE SPECTROMETRY
E3-TRANSITIONS
ENERGY LEVELS
EXPERIMENTAL DATA
IN-BEAM SPECTROSCOPY
INTERNAL CONVERSION
MEV RANGE 10-100
NEUTRONS
ALPHA DECAY RADIOISOTOPES
BARYONS
BETA DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COINCIDENCE METHODS
CONVERSION
COUNTING TECHNIQUES
DATA
DECAY
DISTRIBUTION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
FERMIONS
HADRONS
HEAVY ION REACTIONS
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MULTIPOLE TRANSITIONS
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
ODD-EVEN NUCLEI
PROMETHIUM ISOTOPES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SPECTROSCOPY
TARGETS
YEARS LIVIN
663450* - Heavy-Ion-Induced Reactions & Scattering- (1992-)
663560 - Nuclear Mass Ranges- A=90-149- (1992-)