The decay of83gSe and83mSe |
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| Authors: | P Fettweis S Sadasivan |
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| Institution: | 1. Centre d'Etudes de l'Energie Nucléaire C.E.N/S.C.K., Mol, Belgium
2. A.G.C.D. bursary, Belgium
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| Abstract: | The decay of the isomeric pair83gSe (T1/2=22.6 min,I α = 9/2+) and83mSe (T1/2=70 s,I α = 1/2?) has been reinvestigated using straight Ge(Li) (83gSe and83mSe) and Ge(Li)-Ge(Li) coincidence spectrometry (83gSe). Both decays populate entirely different83Br levels, 11 of them being previously unreported. Fromγ-ray unbalances and from the known isomeric cross-section ratio of82Se, β?-branchings have been obtained, including a 34% branching of83mSe to the ground state of83Br. Logft-values are deduced, spin and parity values proposed and discussed. |
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