Strongly coupled enhanced-deformation band in [sup 131]Pr

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.R2655· OSTI ID:6940444

Galindo-Uribarri, A; Ward, D ^[1]; Drake, T ^[2]; Hackman, G ^[3]; Janzen, V P ^[1]; Mullins, S M ^[3]; Pilotte, S ^[4]; Radford, D C ^[1]; Ragnarsson, I ^[5]; Schmeing, N C; Waddington, J C ^[3]

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1. AECL Research, Chalk River Laboratories, Ontario, K0J 1J0 (Canada)
2. Department of Physics, University of Toronto, Toronto, Ontario, M5S 1A7 (Canada)
3. Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, L8S 4M1 (Canada)
4. Department of Physics, University of Ottawa, Ottawa, Ontario, K1N 6N5 (Canada)
5. Department of Mathematical Physics, Lund Institute of Technology, P.O. Box 118, S-22100, Lund (Sweden)

An enhanced-deformation (ED) rotational band with unusual characteristics has been discovered in the odd-[ital Z] nucleus [sup 131]Pr. The dynamical moment of inertia J[sup (2)]=(50--60)[h bar][sup 2] MeV[sup [minus]1] and the extracted quadrupole moment [ital Q][sub 0] = 5.5 [plus minus] 0.8 [ital e]b ([beta][sub 2]=0.32[plus minus]0.05) are comparable with other ED bands (sometimes called superdeformed'') in the mass [ital A][similar to]130 region. The two signature partners of the ED band are connected by dipole transitions which can be followed down to a [ital K]=9/2 bandhead. The nature of this band differs from all other ED bands in the [ital A][similar to]130 region since the [ital i][sub 13/2] intruder neutron orbital is unoccupied.

• OSTI ID: 6940444
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:6; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663120* -- Nuclear Structure Models & Methods-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COLLECTIVE EXCITATIONS
DEFORMATION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
ISOTOPES
MOMENT OF INERTIA
NUCLEAR DEFORMATION
PROMETHIUM ISOTOPES
QUADRUPOLE MOMENTS
RARE EARTH ISOTOPES
ROTATIONAL STATES