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Journal Articles Acta Physica Polonica B Year : 2013

Observation of Large Orbital Scissors Strength in Actinides

M. Guttormsen
  • Function : Author
L.A. Bernstein
  • Function : Author
A. Bürger
  • Function : Author
T. W. Hagen
  • Function : Author
A.C. Larsen
  • Function : Author
T. Renstrøm
  • Function : Author
S. Siem
  • Function : Author
M. Wiedeking
  • Function : Author

Abstract

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.

Dates and versions

in2p3-00842795 , version 1 (09-07-2013)

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M. Guttormsen, L.A. Bernstein, A. Bürger, A. Görgen, F. Gunsing, et al.. Observation of Large Orbital Scissors Strength in Actinides. Acta Physica Polonica B, 2013, 44, pp.567-570. ⟨10.5506/APhysPolB.44.567⟩. ⟨in2p3-00842795⟩
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