Isobaric spin mixing in the analog states of 90Zr |
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| Authors: | HJ Askin RS Hicks KJF Allen RJ Petty MN Thompson |
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| Institution: | Institute of Physics, University of Aarhus, Denmark |
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| Abstract: | A 90° photoproton energy spectrum has been obtained from the reaction 90Zr(γ, p)89Y using an isotopically enriched target foil. Previously unreported proton groups are observed at Ep = 6.95, 9.55, 10.68 and 11.03 MeV. A total photoneutron cross section and a low-energy neutron energy spectrum are also presented, and isospin mixing is demonstrated by comparison with the photoproton data. The possibility of T> strength in the region 23–24 MeV excitation is noted. |
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| Keywords: | Nuclear reactions |
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