High-lying three-quasiparticle bands and signature splitting in [sup 81]Rb

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

DOI:https://doi.org/10.1103/PhysRevC.50.1845· OSTI ID:6962421

Doering, J ^[1]; Schwengner, R; Funke, L; Rotter, H; Winter, G ^[2]; Cederwall, B; Liden, F; Johnson, A ^[3]; Atac, A; Nyberg, J; Sletten, G ^[4]

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1. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)
2. Institut fuer Kern- und Hadronenphysik, Forschungszentrum Rossendorf, D-01314 Dresden (Germany)
3. The Royal Institute of Technology, Physics Department, Frescativaegen 24, S-10405 Stockholm (Sweden)
4. Niels Bohr Institute, DK-4000 Roskilde (Denmark)

Two new high-lying level sequences of negative parity have been identified in the odd-proton nucleus [sup 81]Rb by in-beam [gamma]-ray spectroscopy using the reactions [sup 79]Br([alpha],2[ital n]) at 27 MeV and [sup 68]Zn([sup 19]F,[alpha]2[ital n]) at 72 MeV. One sequence, dominated by [ital M]1 transitions, is interpreted as a three-quasiparticle band predominantly containing a neutron in the [ital p][sub 1/2], [ital p][sub 3/2], or [ital f][sub 5/2] subshell coupled to [ital g][sub 9/2] proton and [ital g][sub 9/2] neutron excitations. The other new level sequence forms the three-quasiparticle extension of the unfavored negative-parity band, but the states decay also by [ital E]1 transitions. The signature splitting points to a configuration where an aligned [ital g][sub 9/2] proton pair is involved.

• OSTI ID: 6962421
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:4; 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-)
663550 -- Nuclear Mass Ranges-- A=59-89-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BROMINE 79 TARGET
CHARGED-PARTICLE REACTIONS
COLLECTIVE EXCITATIONS
E1-TRANSITIONS
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUORINE 19 REACTIONS
GAMMA SPECTROSCOPY
HEAVY ION REACTIONS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
M1-TRANSITIONS
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTO
MULTIPOLE TRANSITIONS
NUCLEAR REACTIONS
NUCLEI
PARITY
PARTICLE PROPERTIES
QUASI PARTICLES
RADIOISOTOPES
RUBIDIUM 81
SPECTROSCOPY
TARGETS
ZINC 68 TARGET