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Title: Isomer spectroscopy of ²⁵⁴No
Author: Gray-Jones, Craig
ISNI:       0000 0004 2673 4045
Awarding Body: University of Liverpool
Current Institution: University of Liverpool
Date of Award: 2008
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A number of experiments were carried out to clarify the structure and decay path of an isomeric state in ²⁵⁴No [Gh73, He06, Ta06]. A band built on the 1298 keV Kπ = 8- isomer was found. From the observed branching ratios in this band a two-proton configuration is favoured for this state, which further supports our earlier conclusions [He08] that the deformed shell closures in this mass region are at Z = 100 and N = 152, in contradiction to predictions by Skyrme-Hartree-Fock models [Cha06]. Furthermore, the level scheme of ²⁵⁴No was extended to include a floating band and a systematic of reduced hindrance factors for ΔΚ = 8 E1 transitions is given.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral