Quadrupole moments of the 12+ isomers in 188Hg and 190Hg
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The electric quadrupole interaction of the 12+ isomers in 188Hg and 190Hg has been measured in solid Hg. The quadrupole moments deduced, |Q{188Hg(12+)}| = 91(11) e fm2 and |Q{190Hg(12+)}| = 117(14) e fm2 suggest a possible change in γ-deformation due to the rotation alignment of the i 13 2 quasi-neutrons. The temperature dependence of the electric field gradient tensor in Hg was also determined.
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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics