Level structure of 75Se by the 75As(p,nγ)75Se reaction |
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Authors: | Sugimitsu Tsuyoshi |
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Affiliation: | Physics Department, Faculty of Science, Kyusyu University, Fukuoka, Japan |
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Abstract: | Excitation functions of γ-rays from the 75As(p, n)75Se reaction were measured with 2.0 to 3.6 MeV protons to establish the level scheme of 75Se up to about 1.5 MeV excitation energy. Internal conversion electrons following the same reaction were measured at 4.5 and 5.0 MeV proton energy. Using theoretical predictions of the statistical compound nucleus model together with deduced internal conversion coefficients, unique spin assignments were obtained for the and levels. Probable spins were proposed to the for one of the doublet and or for the other), 579.4 or , or and or levels. Alow-lying level was tentatively assigned at 133.2 keV energy. It was found that a low-lying level which appears systematically in other odd Se nuclei is absent in 75Se. |
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Keywords: | Nuclear reactions |
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