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Identification of Hg and shape coexistence in odd-A Hg isotopes |
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| Authors: | P G Varmette D T Shidot W C Ma A V Ramayya R V F Janssens C N Davids J H Hamilton I Ahmad H Amro B R S Babu B Back K S Bindra D J Blumenthal L T Brown M P Carpenter W L Croft B Crowell S M Fischer U Garg R G Henry T Ishii T L Khoo J Kormicki T Lauritsen C J Lister D Nisius H Penttila R B Piercey J A Winger S J Zhu andP B Semmes |
| Institution: | a Department of Physics, Mississippi State University, Mississippi State, MS 39762, USA b Department of Physics, Vanderbilt University, Nashville, TN 37253, USA c Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA d Department of Physics, University of Notre Dame, South Bend, IN 46556, USA e Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan f Department of Physics, Tsinghua University, Beijing, China g Department of Physics, Tennessee Technological University, Cookeville, TN 38505, USA |
| Abstract: | In-beam γ-ray transitions in 181Hg, the lightest odd-A Hg isotope known thus far, have been identified from fragment mass-γ and γ-γ coincidence measurements. Five prolate deformed rotational bands were placed in the level scheme. A decoupled band built on the strongly prolate deformed 1/2−521] ground state was observed up to 29/2−. A 5/2−512] configuration is suggested for a pair of strongly coupled bands displaying no signature splitting. The other two bands are also signature partner bands. They are populated with the largest intensity and exhibit splitting. They have been associated with the mixed neutron i13/2 orbitals and are proposed to decay to an i13/2 isomeric state associated with an oblate state. |
| Keywords: | 181Hg deduced levels Spin Parity Band structure Configuration |
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