Angular distributions have been measured for 7-rays emitted following the decays of 97'~~176 oriented in an iron matrix at temperatures down to 2.8mK. From the temperature dependence of the 7-anisotropies the magnetic hyperfine splitting frequencies vM= Ig#NBHF/hl of 97, lo3, lO~RuFe were found to be 110(7), 57 (15) The analysis for a~ has been performed with the assump--0.13" tion of j~=3/2 + and 5/2 + for the ground state of l~ Taking into account experimentally known g-factors of 3/2 + and 5/2 + states in this mass region, our data strongly favour the assignment j~= 3/2 + for the l~ ground state.
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