Spin alignment in superdeformed Hg nuclei

Journal Article · Mon May 28 00:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.2623· OSTI ID:6847788

Stephens, F S; Deleplanque, M A; Draper, J E; Diamond, R M; Beausang, C W; Korten, W; Kelly, W H; Azaiez, F ^[1]; Becker, J A; Henry, E A; Roy, N; Brinkman, M J; Cizewski, J A; Yates, S W; Kuhnert, A ^[2]

---

1. Lawrence Berkeley Laboratory, Nuclear Science Division, 1 Cyclotron Road, Berkeley, California 94720 (US)
2. Lawrence Livermore National Laboratory, Livermore, California 94550 (USA)

One of the superdeformed rotational bands in {sup 194}Hg has transition energies (rotational frequencies) that are equal within about 0.1% to those of the (only known) band in {sup 192}Hg. This excited (two-quasiparticle) band in {sup 194}Hg has an aligned spin of (1.00{plus minus}0.04){h bar} relative to the very similar band in {sup 192}Hg, suggesting an interpretation in terms of aligned pseudo (intrinsic) spin. The implied pseudospin symmetry may be a clue as to why the rotational frequencies are so similar.

• DOE Contract Number: AC03-76SF00098; W-7405-ENG-48
• OSTI ID: 6847788
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:22; ISSN 0031-9007; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

651920* -- Nuclear Properties & Reactions
A=190-219
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DEFORMATION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITED STATES
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KEV RANGE
KEV RANGE 100-1000
LIE GROUPS
MATHEMATICAL MODELS
MERCURY 194
MERCURY ISOTOPES
NUCLEAR DEFORMATION
NUCLEAR MODELS
NUCLEI
ORIENTATION
RADIOISOTOPES
ROTATIONAL STATES
SECONDS LIVING RADIOISOTOPES
SHELL MODELS
SPIN ORIENTATION
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS
YRAST STATES