Establishment of M1 multipolarity of a 6.5 muN2 resonance in 172-Yb at Egamma=3.3 MeV
Abstract
Two-step-cascade spectra in 172-Yb have been measured after thermal neutron capture. They are compared to calculations based on experimental values of the level density and radiative strength function (RSF) obtained from the 173-Yb(3-He,alpha gamma)172-Yb reaction. The multipolarity of a 6.5(15) muN2 resonance at Egamma=3.3(1) MeV in the RSF is determined to be M1 by this comparison.
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