Excited 0<sup>+</sup>states and E0 transitions in<sup>200</sup>Hg

Subber, A R H; Hamilton, W D; Colvin, G.

doi:10.1088/0305-4616/13/10/018

Cited by 7 publications

(6 citation statements)

References 21 publications

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“…Although the assignment is based on the observed E0 transition to the 0 + ground state [22], our measured ratio R(5/17.5) = 0.58 (16) does not allow a 0 + assignment since this state does not show the typical forward-peaking expected for a L = 0 transfer.…”

Section: Discussionmentioning

confidence: 82%

High-resolution study of excited0+states in200Hg and202Hg

et al. 2013

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Section: Discussionmentioning

confidence: 82%

High-resolution study of excited0+states in200Hg and202Hg

et al. 2013

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“…The necessary parameters are derived from the values p(E0) = 0.021(3) obtained by Subber et a1 [14] for the 22-2, transition in 2ooHg and from the isomer shift results [31]. We obtain By= -0.020 fm2 and Pn= 0.034 fm2.…”

Section: Eo Transitions and X Valuesmentioning

confidence: 90%

“…Calibration data were taken from Lederer and Shirley [20] and Debertin [21] and a Gaussian fitting routine was used to obtain energies and intensities. These intensity measurements have a greater precision than the data used by Subber et aZ [14] in their evaluation of internal conversion coefficients from measurements of electron intensities, and in several cases a re-evaluation has been made.…”

Section: Data Analysis and Evaluationmentioning

confidence: 99%

“…Most experimentally observed low-spin levels, apart from 1' states below -2.5 MeV; have their counterpart in the IBA-2 level spectrum although the energy Transitions are labelled according to the experimental level sequence; these may differ [14].…”

Section: Eo Transitions and X Valuesmentioning

confidence: 99%

“…These measurements will also provide y-ray multipole mixing ratios of AZ= 0, I f 0 transitions for which we have already measured internal conversion electron coefficients [14]. It should thus be possible to calculate X(EO/E2) values and, in suitable cases obtain the strength of EO contributions in transitions from a 2& state to regular 2+ levels.…”

Section: Introductionmentioning

confidence: 99%

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Mixed-symmetry states and the structure of²⁰⁰Hg

Ahmad¹,

Hamilton²,

Isacker³

et al. 1989

J. Phys. G: Nucl. Part. Phys.

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Mixed-symmetry assignments are made to the 1.570 (l;), 1.573 (2:) and 1.659 (3:) MeV levels in 2wHg. The characteristics of the 2: level are shared with nearby 2+ levels at 1.254 and 1.593 MeV. An interacting boson approximation (IBA-2) analysis examines the sensitivity of the mixed-symmetry states to the E, parameters of the Majorana term and finds that both the magnitude and sign of the d(E2iM1) mixing ratio of 2' -2: transitions are well reproduced at the values of the tt parameters used to obtain a level energy fit. The IBA-2 calculations also give a satisfactory fit to the energy levels and in general provide X(EOiE2) values close to the experimental data. These calculations agree with the known oblate deformation of the ground state which we find to be predicted by Kumar's dynamic deformation model.Experimental data from n, yy(0) experiments together with internal conversion coefficient (ICC) results allow 1+ levels to be unambiguously established at 1.570, 1.631, 1.718, 2.061, 2.370, 2.640 and 2.979 MeV. The measurements also provide precise 6 values of many transitions while event-by-event coincidence information permits the decay scheme to the developed with previous unlocated transitions now firmly assigned. NUCLEAR REACTIONS '99Hg(n; y)ZWHg; thermal neutrons, measured I,, y-ray coincidences, yy(8); deduced 6(E2/Ml), X(EOIE2), mixed-symmetry states, level scheme; enriched target, Ge(Li) detectors. 3 3 0

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