Elsevier

Nuclear Physics A

Volume 108, Issue 2, 5 February 1968, Pages 353-381
Nuclear Physics A

Energy levels in 183Re from the 181Ta(4He, 2nγ)183Re reaction

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Abstract

Gamma rays and conversion electrons following the 181Ta(4He, 2nγ)183Re reaction have been studied with Ge(Li) detectors and with an electron spectrometer. Precise energy measurements and measurements on excitation functions, angular distributions and gamma-gamma coincidences have been performed. Evidence is given for rotational members of the 52+[402] ground state band and for the 92[514] band up to 232+ and 212 respectively. Both bands require a term of alternating sign when the energies of the states are expressed as power series in I(I + 1). The quantity (gK - gR)/Q0 was found to be constant up the bands within the experimental error. It is proposed that some gamma rays originate from the 92, 132 and 172 states of the 12[541] band. There is evidence that this band is strongly Coriolis mixed.

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    Work partly supported by the U.S. Atomic Energy Commission.

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