Observation of high-spin oblate band structures in {sup 141}Pm

Journal Article · Wed Jun 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.064303· OSTI ID:21502763

Gu, L; Zhu, S J; Wang, J G; Yeoh, E Y; Xiao, Z G; Zhang, M; Liu, Y; Ding, H B; Xu, Q ^[1]; Zhang, S Q; Meng, J ^[2]; Zhu, L H; Wu, X G; He, C Y; Li, G S; Wang, L L; Zheng, Y; Zhang, B ^[3]

---

1. Department of Physics, Tsinghua University, Beijing 100084 (China)
2. Department of Technical Physics, Peking University, Beijing 100871 (China)
3. China Institute of Atomic Energy, Beijing 102413 (China)

The high-spin states of {sup 141}Pm have been investigated through the reaction {sup 126}Te({sup 19}F,4n) at a beam energy of 90 MeV. A previous level scheme has been updated with spins up to 49/2({h_bar}/2{pi}). Six collective bands at high spins are newly observed. Based on the systematic comparison, one band is proposed as a decoupled band; two bands with strong {Delta}I=1 M1 transitions inside the bands are suggested as the oblate bands with {gamma} {approx}-60 deg.; three other bands with large signature splitting have been proposed with the oblate-triaxial deformation with {gamma}{approx} -90 deg. The triaxial n-particle-n-hole particle rotor model calculations for one of the oblate bands in {sup 141}Pm are in good agreement with the experimental data. The other characteristics for these bands have been discussed.

• OSTI ID: 21502763
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 6; Other Information: DOI: 10.1103/PhysRevC.83.064303; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BEAMS
COMPARATIVE EVALUATIONS
FLUORINE 19 REACTIONS
HIGH SPIN STATES
M1-TRANSITIONS
MEV RANGE 10-100
NEUTRON EMISSION
NUCLEAR DEFORMATION
PARTICLE-CORE COUPLING MODEL
PROMETHIUM 141
TELLURIUM 126 TARGET
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
DEFORMATION
ELECTRON CAPTURE RADIOISOTOPES
EMISSION
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVALUATION
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
PROMETHIUM ISOTOPES
RADIOISOTOPES
RARE EARTH NUCLEI
TARGETS