The parities of high-spin bands in the odd-odd nucleus 72 As have been established by measurements of the angular distributions and linear polarizations of the decay ␥ rays via the 62 Ni( 13 C,p2n) reaction at a beam energy of 48.5 MeV. In particular, the parity change determined between the 8 ϩ and 7 Ϫ states leads to positive parity for the yrast high-spin band. This band and the electromagnetic transition strengths within it are interpreted based on microscopic calculations using the VAMPIR model as arising from the intruder (g 9/2 g 9/2 ) configuration.

The band structure of 219 Ra has been studied via the 208 Pb( 14 C,3n) reaction using both ␥-␥ and conversion electron-␥ coincidence measurements. This nucleus is at the lower mass limit of a region where static octupole deformation may occur. The conversion coefficients of seven transitions and two upper limits on conversion coefficients have been determined for the first time. The results establish the alternating parity nature of a sideband in this nucleus and also resolve an apparent conflict between radioactive decay data and heavy-ion reaction data. The resulting level scheme of 219 Ra can be explained either by intermediate coupling of the odd neutron to a reflection symmetric core and a low frequency octupole vibrational mode or by strong coupling to a statically octupole deformed core.PACS number͑s͒: 23.20.Nx, 21.60.Ev, 27.80.ϩw ence,

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A new in-beam study of Hg levels has been carried out by using the Gd( S, 4n) reaction at a beaxn energy of 160 MeV. A new pair of signature-partner bands, with large signature splitting, has been established in Hg. The bandhead of these signature-partner bands is assigned to be the ground state of Hg with a configuration of 1/2 [521]. The measured ratios of directional correlations (DCO ratios) revealed decay patterns for the proposed 9/2+ [624] bands in Hg difFerent from those of Hg.