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Establishment of M1 multipolarity of a 6.5 mu_N^2 resonance in 172-Yb at E_gamma=3.3 MeV

A. Schiller·A. Voinov·E. Algin·J. A. Becker·L. A. Bernstein·P. E. Garrett·M. Guttormsen·R. O. Nelson·J. Rekstad·S. Siem
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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) mu_N^2 resonance at E_gamma=3.3(1) MeV in the RSF is determined to be M1 by this comparison.

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A. Schiller, A. Voinov, E. Algin, J. A. Becker, L. A. Bernstein, P. E. Garrett, M. Guttormsen, R. O. Nelson, J. Rekstad, S. Siem. 2004-01-27. Establishment of M1 multipolarity of a 6.5 mu_N^2 resonance in 172-Yb at E_gamma=3.3 MeV. https://doi.org/10.1016/j.physletb.2005.12.043

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