Rotational band structures in doubly odd sup 138 Pm

Journal Article · Wed Aug 01 00:00:00 EDT 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.42.541· OSTI ID:6604080

Beausang, C W; Weng, P K; Ma, R; Paul, E S; Piel, Jr, W F; Xu, N; Fossan, D B ^[1]

---

1. Physics Department, State University of New York at Stony Brook, Stony Brook, New York 11794 (USA)

High-spin states in the doubly odd nucleus {sup 138}Pm have been studied via gamma-ray spectroscopic methods following the {sup 116}Cd({sup 27}Al,5{ital n}{gamma}) heavy-ion fusion-evaporation reaction. Several rotational bands have been populated in the nucleus. The yrast cascade is based on two signature components of the {pi}{ital h}{sub 11/2}{direct product}{nu}{ital h}{sub 11/2} configuration. A sideband was observed, which is probably based on the {pi}(413)5/2{sup +}{direct product}{nu}{ital h}{sub 11/2} configuration. Similar rotational bands built on these configurations have been observed in the neighboring doubly odd {sup 134}Pr and {sup 136}Pm nuclei. An additional {Delta}{ital I}=2 band structure, not observed in these other nuclei, has also been populated. At low rotational frequencies, this band is possibly based on the {pi}{ital h}{sub 11/2}{direct product}{nu}(400)1/2{sup +} configuration. At a frequency {h bar}{omega}{similar to}0.31 MeV it is crossed by a band based on the favored signature of the {pi}{ital h}{sub 11/2}{direct product}{nu}{ital i}{sub 13/2} configuration with an accompanying gain in alignment of {similar to}6{h bar}.

• OSTI ID: 6604080
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:2; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651720* -- Nuclear Properties & Reactions
A=90-149
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 REACTIONS
ANGULAR DISTRIBUTION
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CADMIUM 116 TARGET
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
CRANKING MODEL
CROSS SECTIONS
DISTRIBUTION
ENERGY LEVELS
EXCITATION FUNCTIONS
EXCITED STATES
FUNCTIONS
HEAVY ION REACTIONS
HIGH SPIN STATES
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
PROMETHIUM 138
PROMETHIUM ISOTOPES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
ROTATIONAL STATES
TARGETS
YRAST STATES