Multiple band structures at high angular momentum in [sup 115]I: Towards unfavored band termination

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.741· OSTI ID:7161053

Paul, E S ^[1]; Andrews, H R; Janzen, V P; Radford, D C; Ward, D ^[2]; Drake, T E; DeGraaf, J ^[3]; Pilotte, S ^[4]; Ragnarsson, I ^[5]

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1. Oliver Lodge Laboratory, University of Liverpool, PO Box 147, Liverpool L69 3BX (United Kingdom)
2. Chalk River Laboratories, AECL Research, Chalk River, Ontario, K0J 1J0 (Canada)
3. Department of Physics, University of Toronto, Toronto, Ontario, M5S 1A7 (Canada)
4. Department of Physics, University of Ottawa, Ottawa, K1N 6N5 (Canada)
5. Department of Mathematical Physics, Lund Institute of Technology, PO Box 118, S-22100, Lund (Sweden)

Six new rotational bands have been established in [sup 115]I at high spin using the near symmetric [sup 60]Ni([sup 58]Ni,3[ital p][gamma]) reaction at 250 MeV. Several of the bands are observed to frequencies beyond [h bar][omega]=1.0 MeV (spin approaching 50[h bar]). All the bands show a characteristic drop off in their dynamic moments of inertia with increasing spin. The low values at the highest spins are consistent with predictions for a band termination in which a gradual shape change from collective prolate to noncollective oblate occurs over many transitions. these smoothly occurring terminations contrast with the abrupt favored'' terminations previously observed in this and other odd-[ital A] iodine nuclei.

• OSTI ID: 7161053
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663220 -- Electromagnetic Transitions-- (1992-)
663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COLLECTIVE EXCITATIONS
DEFORMATION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
GAMMA SPECTROSCOPY
HEAVY ION REACTIONS
HIGH SPIN STATES
INTERMEDIATE MASS NUCLEI
IODINE 115
IODINE ISOTOPES
ISOTOPES
MEV RANGE
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
MOMENT OF INERTIA
NICKEL 58 REACTIONS
NICKEL 60 TARGET
NUCLEAR DEFORMATION
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
SPECTROSCOPY
TARGETS