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arXiv · 0911.1918

Gamma-strength functions in 60Ni from two-step cascades following proton capture

A. Voinov·S. M. Grimes·C. R. Brune·M. Guttormsen·A. C. Larsen·T. N. Massey·A. Schiller·S. Siem
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Abstract

The two-step cascade method previously used in neutron capture experiments is now applied to a proton capture reaction. The spectrum of two-step cascades populating the first 2+ level of 60Ni has been measured with 59Co(p,2gamma)60Ni reaction. The simulation technique used for the spectrum analysis allows one to reveal the range of possible shapes of both E1 and M1 gamma-strength functions. The low-energy enhancement previously observed in 3He induced reactions is seen to appear in M1 strength functions of 60Ni.

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A. Voinov, S. M. Grimes, C. R. Brune, M. Guttormsen, A. C. Larsen, T. N. Massey, A. Schiller, S. Siem. 2009-11-10. Gamma-strength functions in 60Ni from two-step cascades following proton capture. https://doi.org/10.1103/physrevc.81.024319

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