Properties of the 13/2+ isomeric decay in201Hg |
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Authors: | T Lönnroth P Ahonen R Julin S Juutinen A Lampinen A Pakkanen S Törmänen W Trzaska A Virtanen |
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Institution: | 1. Department of Physics, ?bo Akademi, Turku, Finland 2. Department of Physics, University of Jyv?skyl?, Finland
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Abstract: | The isomeric decay of theT 1/2=94 us isomeric state in201Hg was studied in beam via the reaction198Pt(α, n). Gamma-ray and conversion-electron spectra were recorded. From the conversion coefficients, the multipolarities of the two depopulating transitions were determined to beM 2 + 10%E 3 andE 2, respectively. These assignments give the depopulating transitions to be 13/2+ → 9/2? and 9/2? → 5/2?, and these thus substantiate the previous suggestion that the isomeric state hasJ π=13/2+. For the 13/2+ → 9/2? M 2 transition a detailed study ofE 3 andM 4 admixed amplitudes was done. The microscopic properties of the 13/2+ and 9/2? states are discussed, and a comparison to the corresponding ones in199,203,205Hg is made. |
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