Δ<i>I</i>=4 bifurcation in a superdeformed band: Evidence for a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>symmetry

Flibotte, Stéphane; Andrews, H.R.; Ball, G. C.; Beausang, C. W.; Beck, F.A.; Bélier, G.; Byrski, T.; Curien, D.; Dagnall, P.J.; Disdier, D.; Duchêne, G.; Finck, C.; Haas, B.; Hackman, G.; Haslip, D. S.; Janzen, V. P.; Kharraja, B.; Lisle, J.C.; Merdinger, J.C.; Mullins, S. M.; Nazarewicz, W.; Radford, D. C.; Rauch, V.; Savajols, H.; Styczeń, J.; Theisen, Ch.; Twin, P.J.; Vivien, J.P.; Waddington, J. C.; Ward, D. R.; Zuber, K.; Åberg, Sven

doi:10.1103/physrevlett.71.4299

Cited by 128 publications

(40 citation statements)

References 18 publications

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“…The ∆ I = 2 staggering was also observed in some SD bands [24][25][26][27][28]. It manifests itself in systematic shifts of the energy levels, which are alternately pushed down and up with respect to a purely rotational sequence.…”

Section: Thementioning

confidence: 96%

“…It manifests itself in systematic shifts of the energy levels, which are alternately pushed down and up with respect to a purely rotational sequence. It was suggested that their origin could be associated with the presence of C 4 symmetry [24,25]. To date, some models have been proposed to explain the experimental results [9,28].…”

Section: Thementioning

confidence: 99%

“…Sequences of states differing by four units of angular momentum are displaced relative to each other. A few theoretical proposals for the possible explanation of this ∆I = 4 bifurcation were made [9,24,25,28].The deviation of the γ -ray transition energies from the rigid rotor behavior can be measured by the staggering quantity [26]:…”

Section: Test Of a ∆I = 2 Staggeringmentioning

confidence: 99%

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Description of the yrast superdeformed bands in even-even nuclei in A $\sim$ 190 region using the nuclear softness model

Khalaf¹,

Abdelmageed²,

Sirag³

2015

Turk J Phys

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Section: Thementioning

confidence: 96%

Section: Thementioning

confidence: 99%

Section: Test Of a ∆I = 2 Staggeringmentioning

confidence: 99%

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Description of the yrast superdeformed bands in even-even nuclei in A $\sim$ 190 region using the nuclear softness model

Khalaf¹,

Abdelmageed²,

Sirag³

2015

Turk J Phys

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“…This means that the Hamiltonian is invariant under rotations by | around the rotational axis [19]. Quite recently, Sun, Zhang and Guidry (SZG) investigated this phenomena with the PSM and offered an alternative explanation of the problem.…”

Section: A7 = 4 Bifurcationmentioning

confidence: 96%

“…The phenomena for this is roughly as follows: the rotational sequences in the superdeformed nuclei with angular momentum differing by two (E2 sequence) can split into two branches[19], one has spin 7, 7 + 4, 7 + 8 and so on and the other 7 + 2, 7 + 6, 7 + 10 and so on. The staggering amplitude is very small, of the order of approximately 1/2 KeV.…”

mentioning

confidence: 99%

A Review of the Current Efforts of the Projected Shell Model in Nuclear Structure Physics

Feng

Sun

Zhang

et al. 1996

Heavy Ion Physics and Its Applications

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The Projected Shell Model (PSM) of Hara and Sun is reviewed. This is a shell model developed for the medium to heavy systems. Although the model can be applied to a variety of collective modes, its current numerical code is primarily designed to study nuclear structure of well deformed systems, in high and low spin states. We will give a general discussion of the model and its relationship with the algebraic approaches such as the Fermion Dy namical Symmetry Model, and also show various applications to the physics of high spin spectroscopy, level statistics (or "quantum chaos"), and AI = 4 bifurcation.

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Staggering Effects in Nuclear and Molecular Spectra

Bonatsos

Karoussos

Daskaloyannis

et al. 2001

New Trends in Quantum Systems in Chemistry and Physics

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It is shown that the recently observed ∆J = 2 staggering effect (i.e. the relative displacement of the levels with angular momenta J, J + 4, J + 8, . . . , relatively to the levels with angular momenta J + 2, J + 6, J + 10, . . . ) seen in superdeformed nuclear bands is also occurring in certain electronically excited rotational bands of diatomic molecules (YD, CrD, CrH, CoH), in which it is attributed to interband interactions (bandcrossings). In addition, the ∆J = 1 staggering effect (i.e. the relative displacement of the levels with even angular momentum J with respect to the levels of the same band with odd J) is studied in molecular bands free from ∆J = 2 staggering (i.e. free from interband interactions/bandcrossings). Bands of YD offer evidence for the absence of any ∆J = 1 staggering effect due to the disparity of nuclear masses, while bands of sextet electronic states of CrD demonstrate that ∆J = 1 staggering is a sensitive probe of deviations from rotational behaviour, due in this particular case to the spin-rotation and spin-spin interactions.

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ΔI=4 bifurcation in a superdeformed band: Evidence for aC4symmetry

Cited by 128 publications

References 18 publications

Description of the yrast superdeformed bands in even-even nuclei in A $\sim$ 190 region using the nuclear softness model

Description of the yrast superdeformed bands in even-even nuclei in A $\sim$ 190 region using the nuclear softness model

A Review of the Current Efforts of the Projected Shell Model in Nuclear Structure Physics

Staggering Effects in Nuclear and Molecular Spectra

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