Linear polarization measurements and negative-parity states in {sup 80}Sr

Journal Article · Mon Sep 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.037303· OSTI ID:21192254

Kaye, R A ^[1]; Myers, C S ^[1]; Doering, J ^[2]; Tabor, S L; Baldwin, T D; Campbell, D B; Chandler, C; Cooper, M W; Hoffman, C R; Pavan, J; Wiedeking, M ^[3]; Gerbick, S M ^[3]; Hallstrom, M A ^[4]; Riley, L A ^[5]

---

1. Department of Physics and Astronomy, Ohio Wesleyan University, Delaware, Ohio 43015 (United States)
2. Gesellschaft fuer Schwerionenforschung (GSI), Planckstr. 1, D-64291 Darmstadt (Germany)
3. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)
4. Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106 (United States)
5. Department of Physics and Astronomy, Ursinus College, Collegeville, Pennsylvania 19426 (United States)

High-spin states in {sup 80}Sr were studied using the {sup 54}Fe({sup 28}Si,2p) reaction at 90 MeV and the {sup 58}Ni({sup 28}Si,{alpha}2p) reaction at 110 MeV. Prompt {gamma}-{gamma} coincidences were measured from the {sup 54}Fe({sup 28}Si,2p) reaction using an array of 10 Compton-suppressed Ge detectors. {gamma}-ray linear polarizations were measured in both reactions using three clover detectors as Compton polarimeters. Negative parity has been conclusively assigned to one band and is favored for two others based on the polarization measurements and the observation of six new linking transitions between the bands near their band heads. This evidence supports a picture of strong mixing between low-lying states with negative parity, similar to what has been observed in {sup 82}Sr. Directional correlation of oriented nuclei ratios support the spin assignments made in the most recent in-beam study.

• OSTI ID: 21192254
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
BEAMS
GAMMA RADIATION
GE SEMICONDUCTOR DETECTORS
HIGH SPIN STATES
IRON 54 TARGET
MEV RANGE
MIXING
NICKEL 58
NUCLEAR REACTIONS
ORIENTED NUCLEI
PARITY
POLARIMETERS
POLARIZATION
PROTON-EMISSION DECAY
SILICON 28 BEAMS
SPIN
STRONTIUM 80
STRONTIUM 82