O(6)-symmetry breaking in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>γ</mml:mi></mml:mrow></mml:math>-soft nucleus<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Xe</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>126</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>and its evolution in the light stable xenon isotopes

Coquard, L.; Rainovski, G.; Pietralla, N.; Ahn, T.; Bettermann, L.; Carpenter, M. P.; Janssens, R. V. F.; Leske, J.; Lister, C. J.; Möller, O.; Möller, T.; Rother, W.; Werner, V.

doi:10.1103/physrevc.83.044318

Cited by 27 publications

(6 citation statements)

References 28 publications

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“…Also these nuclei have previously been argued to exhibit O(6) dynamical symmetry, based on the observation of τ-selection rules related to O(5) symmetry [5]. Our recent data on 124,126 Xe [6,7], however, demonstrate the existence of (at least moderately) collective E2 transitions between states with different O(6) quantum numbers σ which is at variance with the selection rule for E2 transitions with respect to σ. A quantitative quantum number fluctuation analysis indicates a severe breaking of O(6) symmetry, at least for the isotopes 124,126 Xe.…”

Section: τ L) = A[n(n+4]−σ(σ+4)]+bτ(τ+3)+cl(l+1)contrasting

confidence: 48%

New Information on the Occurrence of the O(6) Symmetry in Nuclei

Pietralla

Möller

Lister

et al. 2015

EPJ Web of Conferences

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Abstract. New γγ-coincidence relations and E2 decay transition rates in the isotopes 194,196 Pt have been deduced from γ-ray spectroscopy experiments using the Gammasphere spectrometer in projectile-Coulomb excitation reactions of beams of 194,196 Pt ions provided by the ATLAS accelerator facility. The results give access to observables that are crucial for a classification of excited quadrupole-collective states in terms of quantum numbers associated with the analytically solvable O(6) dynamical symmetry of the interacting boson model. The data on 196 Pt corroborate the qualitative pattern of excitation energies and E2 transition rates expected from the O(6) solution but the excitation energies significantly deviate from it on a quantitative level.

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Section: τ L) = A[n(n+4]−σ(σ+4)]+bτ(τ+3)+cl(l+1)contrasting

confidence: 48%

New Information on the Occurrence of the O(6) Symmetry in Nuclei

Pietralla

Möller

Lister

et al. 2015

EPJ Web of Conferences

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“…Zhang Da-Li and Ding Bin-Gang (Da-Li & Bin-Gang, 2013) studied the structure evolution of the [124][125][126][127][128][129][130][131][132][133][134] Xe isotopic chain in the framework of the proton-neutron interacting model (IBM2), they have been calculated the B(E2) transition branching ratios, and the M1 excitations. L. Coquard et al (Coquard et al, 2011) described the low-lying collective states in 126 Xe and calculated the B(E2) values within the framework of the IBM which show a good agreement with the measured values. L Prochniak (Próchniak, 2015) studied the collective properties of the even-even 118−144 Xe isotopes within a model employing the general Bohr Hamiltonian, calculated the low energy spectra and B(E2) transition probabilities and compared the results with the experimental values.…”

Section: Introductionsupporting

confidence: 52%

Energy Levels and Electromagnetic Transition of Some Even-Even Xe Isotopes

Khudher¹,

Hasan²,

Sharrad³

2016

MAS

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In this work, the energy levels electromagnetic transition B(E2) and B(M1), branching ratios, mixing ratios and electric quadrupole moment of even-even [120][121][122][123][124][125][126] Xe isotopes have been investigated using Interacting Boson Model (IBM-1). The results were compared with some previous experimental and theoretical values, it was seen that the obtained theoretical results are in agreement with the experimental data.

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“…In the case of some Xe isotopes, there are much more extensive experimental data on E2 transitions (see, [16] for 126 Xe and [42,43] for 128 Xe), but I will leave a discussion of them for a subsequent publication. Xe nuclei.…”

Section: E2 Transitionsmentioning

confidence: 99%

“…The long chain of Xe isotopes offers a good opportunity to study the evolution of these properties as the number of neutrons increases, and also to study the role of nonaxiality. Let me mention a few works that studied one or more of the even-even Xe isotopes: papers employing geometrical concepts and the Bohr Hamiltonian [2,[9][10][11][12], papers based on the interacting boson model [13][14][15][16], and papers using truncated shell model space [17][18][19].…”

Section: Introductionmentioning

confidence: 99%