Elsevier

Nuclear Physics A

Volume 522, Issues 3–4, 21–28 January 1991, Pages 557-567
Nuclear Physics A

Investigation of the new isotope 172Ho and of 174Er

https://doi.org/10.1016/0375-9474(91)90080-PGet rights and content

Abstract

In multinucleon-transfer reactions between an 11.6 MeVu 136Xe beam and enriched 186W targets the decay of the new isotope 172Ho was observed at the GSI on-line mass separator. For 172Ho, the half-life was measured to be 25(3) s and a decay scheme is proposed on the basis of γγ-coincidence data. The decay of 3.1 (3) min 174Er was reinvestigated. The decay schemes are discussed within level systematics and macroscopic-microscopic model calculations.

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    The work has been supported by the Federal Ministry for Research and Technology (BMFT) under contract number 06GÖ105.

    1

    The authors would like to thank C. Bruske, K. Burkard and W. Hüller for their help in operating the on-line mass separator. One of the authors (K.R.) would like to thank for support from GSI Darmstadt and from the Polish Ministry of National Education (Project CPB01.09).

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