2 PROTON HIGH-SPIN EXCITATIONS AND DIPOLE BANDS IN HG-192

The Hg-192 nucleus has been produced via the S-36(Gd-160, 4n) reaction at a beam energy of 159 MeV. The gamma-rays have been detected with t he multidetector array EUROGAM phase 1. The level scheme has been exte nded up to 10.4MeV excitation energy and spin 34. Two new structures, composed of competing Delta I = 1 and Delta I = 2 transitions, have be en observed and, for the first time in Mercury isotopes, some links wi th the previously known low-lying states have been established. These experimental results are discussed in terms of mean-field Hartree-Fock plus BCS calculations and the new bands are proposed to originate fro m deformation-aligned quasi-proton excitations. pi(i(13/2)h(9/2))(K p i=11) and pi(h(9/2))(k pi=8+)(2) coupled to rotation-aligned quasi-neu trons nu(i(13/2))(n) and quasi-proton pi(h(11/2))(2) excitations.