Observation of Large Orbital Scissors Strength in Actinides

The M1-scissors resonance (SR) has been measured for the first time in the quasi-continuum of actinides. Particle-\gamma coincidences are recorded with deuteron and 3He induced reactions on 232Th. An unexpectedly strong integrated strength of BM1 = 11-15 \mu n2 is measured in the E\gamma = 1.0-3.5 M...

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Bibliographic Details
Published inActa physica Polonica, B Vol. 44; no. 3; pp. 567 - 570
Main Authors Guttormsen, M., Bernstein, L.A., Bürger, A., Görgen, A., Gunsing, F., Hagen, T.W., Larsen, A.C., Renstrøm, T., Siem, S., Wiedeking, M., Wilson, J.N.
Format Journal Article
LanguageEnglish
Published Jagellonian University, Cracow 01.03.2013
Subjects
Nuclear Experiment
Physics
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Summary:The M1-scissors resonance (SR) has been measured for the first time in the quasi-continuum of actinides. Particle-\gamma coincidences are recorded with deuteron and 3He induced reactions on 232Th. An unexpectedly strong integrated strength of BM1 = 11-15 \mu n2 is measured in the E\gamma = 1.0-3.5 MeV region. The increased \gamma-decay probability due to the scissors mode is important for cross-section calculations for future fuel cycles of fast nuclear reactors and may also have impact on stellar nucleosynthesis.
ISSN:0587-4254
1509-5770
DOI:10.5506/APhysPolB.44.567