Browsing by Author "K. Rykaczewski"

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Allowed-unhindered β decay of Yb180 and the nuclear structure of Lu180
(1995) F. Meissner; T. Hild; V. Kunze; W.-D. Schmidt-Ott; C. Wennemann; P.C. Sood; R. Kirchner; E. Roeckl; K. Rykaczewski
The β decay of mass-separated Yb180 was investigated by measuring β-delayed γ rays and conversion electrons. Evidence was found for an allowed-unhindered β transition involving the transformation of a 7/2-[514] neutron into a 9/2-[514] proton. The experimental results include a new decay scheme of Yb180 which gives evidence for a 5+ ground state of Lu180 and leads to the first identification of further low-spin configurations. These data are compared with predictions obtained from two-quasiparticle band-head energy calculations based on a zero-range residual interaction with appropriate Nilsson model wave functions. © 1995 The American Physical Society.