Proton and neutron alignments in negative-parity bands of {sup 76}Kr

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.52.R2284· OSTI ID:122359

Doering, J; Johns, G D; Kaye, R A; Riley, M A; Tabor, S L; Womble, P C ^[1]; Saladin, J X ^[2]

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1. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)
2. Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)

High-spin states in {sup 76}Kr were studied using the {sup 54}Fe({sup 28}Si, {alpha} 2{ital p}) reaction at 120 MeV. Two new level sequences with negative parity decaying to known states in {sup 76}Kr have been identified from prompt {gamma}-{gamma} coincidences. The observed band crossings at a rotational frequency of about 0.55 MeV/{h_bar} can be understood as a {ital g}{sub 9/2} quasiproton alignment in bands built on two-quasineutron excitations at near-prolate deformation, in contrast to the {ital g}{sub 9/2} quasineutron alignment at about 0.75 MeV/{h_bar} in the previously known two-quasiproton negative-parity bands.

• Sponsoring Organization: USDOE
• OSTI ID: 122359
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 52; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALIGNMENT
COINCIDENCE METHODS
DEFORMATION
EXCITATION
HIGH SPIN STATES
IRON 54 TARGET
KRYPTON 76
MEV RANGE 100-1000
NEUTRONS
PARITY
PROTONS
QUASI PARTICLES
SILICON 28 REACTIONS