The low-energy M1 γ-strength from radiative proton capture experiment
Department of Physics and Astronomy, Ohio University, Athens, OH 45701, USA
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Published online: 28 May 2015
The multipolarity of the low-energy (< 3 MeV) γ–strength function has been experimentally studied with the 55Mn(p,2γ)56Fe reaction at 1.65 MeV proton beam energy. The spectrum of two-step γ–cascades populating the ground state of 56Fe has been measured and compared with calculations assuming that E1 or M1 multipolarities dominate in the low-energy region. It was found that experimental data points are reproduced only if the assumption on dominance of the M1 multipolarity is used.
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