Magnetic dipole and electric quadrupole rotational structures and chirality in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">Rh</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>105</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>

Alcántara-Núñez, J A; Oliveira, J. R. B.; Cybulska, E. W.; Medina, N. H.; Rao, M. N.; Ribas, R. V.; Rizzutto, M. A.; Seale, W. A.; Falla-Sotelo, F; Wiedemann, K. T.; Dimitrov, V. I.; Frauendorf, S.

doi:10.1103/physrevc.69.024317

Cited by 77 publications

(56 citation statements)

References 34 publications

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“…These properties may indicate chirality. Indeed, in neighboring 105 Rh similar structure of three ∆I = 1 bands have been observed and identified tentatively as the three lowestenergy bands of the πg 9/2 ⊗νh 11/2 (g 7/2 , d 5/2 ) configuration [17]. In 105 Rh the lowest-energy one of the three bands is thought to have planar geometry, while the two higher-energy bands are considered as a chiral doublet.…”

Section: Mχd Inmentioning

confidence: 93%

“…Such chiral doublet bands were first identified in four N = 75 isotones in 2001 [2]. So far, many chiral candidate nuclei have been reported experimentally in the A ∼ 80, 100, 130, and 190 mass regions [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Besides the simplest chiral configurations composed of one unpaired proton and neutron, composite chiral configurations, containing more than one unpaired protons and/or neutrons, have also been observed in the odd-mass or even-even neighbors of the odd-odd chiral nuclei [10,18].…”

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confidence: 99%

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Multiple Chiral Doublet Bands of Identical Configuration inRh103

et al. 2014

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Three sets of chiral doublet band structures have been identified in the 103 Rh nucleus. The properties of the observed chiral doublet bands are in good agreement with theoretical results obtained using constrained covariant density functional theory and particle rotor model calculations. Two of them belong to an identical configuration, and provide the first experimental evidence for a novel type of multiple chiral doublets, where an "excited" chiral doublet of a configuration is seen together with the "yrast" one. This observation shows that the chiral geometry in nuclei can be robust against the increase of the intrinsic excitation energy.PACS numbers: 21.10. Hw,21.10.Re,23.20.Lv A novel form of spontaneous symmetry breaking, the chiral rotation of triaxial nuclei, was suggested in 1997 [1]. It was shown that in special circumstances, referred to as chiral geometry, in the intrinsic frame of the rotating triaxial nucleus the total angular momentum vector lies outside the three principal planes. Thus, its components along the principal axes can be oriented in leftand right-handed ways. In the laboratory frame the chiral symmetry is restored, which manifests itself as a pair of ∆I = 1 nearly degenerate bands with the same parity. Such chiral doublet bands were first identified in four N = 75 isotones in 2001 [2]. So far, many chiral candidate nuclei have been reported experimentally in the A ∼ 80, 100, 130, and 190 mass regions [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Besides the simplest chiral configurations composed of one unpaired proton and neutron, composite chiral configurations, containing more than one unpaired protons and/or neutrons, have also been observed in the odd-mass or even-even neighbors of the odd-odd chiral nuclei [10,18]. These observations show that chirality is not restricted to a certain configuration in a mass region, i.e. the chiral geometry can be robust against the change of configuration. It was even demonstrated recently by Meng et al. [22][23][24][25], based on adiabatic and configuration-fixed constrained triaxial covariant density functional theory (CDFT) calculations, that it is possible to have multiple pairs of chiral doublet bands in a single nucleus, and the acronym MχD was introduced for this phenomenon. The first experimental evidence for the predicted MχD has been reported in 133 Ce [26], and also possibly in 107 Ag [27].It is also interesting to study the robustness of chiral geometry against the increase of the intrinsic excitation energy, i.e. if the chiral geometry is sustained in the higher-lying bands of a certain chiral configuration. In all the known cases the chiral doublet corresponds to the two lowest-lying bands of a configuration. Even for MχD in133 Ce [26] and 107 Ag [27], each chiral doublet structure corresponds to two lowest-lying bands with a distinct configuration. Therefore, study of the third and forth bands of the same chiral configuration is needed to answer the question of the investigated robustness. Very recent ...

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Section: Mχd Inmentioning

confidence: 93%

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confidence: 99%

Multiple Chiral Doublet Bands of Identical Configuration inRh103

et al. 2014

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“…The restoration of the broken chiral symmetry in the laboratory frame manifests itself as a pair of degenerate ∆I = 1 bands with the same parity. Experimental evidence for such chiral band-pairs has been found in the A ∼ 190, A ∼ 130, A ∼ 100, and A ∼ 80 mass regions of the nuclear chart [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

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confidence: 98%

“…the Triaxial Particle Rotor model (TPRM) [1,[21][22][23]; the Tilted Axis Cranking (TAC) model with shell correction (SCTAC) [2,15,16], and Skyrme-Hartree-Fock [24,25] approaches; and the random phase approximation (RPA) [26,27]. The general conditions for rotational chirality [1] imply that this phenomenon may appear for more than one configuration in the same nucleus.…”

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confidence: 99%

Evidence for Multiple Chiral Doublet Bands inCe133

et al. 2013

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Two distinct sets of chiral-partner bands have been identified in the nucleus 133 Ce. They constitute a multiple chiral doublet (MχD), a phenomenon predicted by relativistic mean field (RMF) calculations and observed experimentally here for the first time. The properties of these chiral bands are in good agreement with results of calculations based on a combination of the constrained triaxial RMF theory and the particle-rotor model.

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“…So far, candidate chiral doublet bands have been proposed in a number of odd-odd nuclei in the A ∼ 130 [3,4,5,6,7,8,9,10,11,12] and A ∼ 100 mass regions [13,14,15]. A few more candidates with more than one valence-particle and hole were also reported in odd-A [16,17,18,19] and even-even nuclei [20].…”

Section: Introductionmentioning

confidence: 99%

Chiral Bands for Quasi-Proton and Quasi-Neutron Coupling With a Triaxial Rotor

Zhang

Wang

et al. 2008

Physics of Unstable Nuclei

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A particle rotor model (PRM) with a quasi-proton and a quasi-neutron coupled with a triaxial rotor is developed and applied to study chiral doublet bands with configurations of a h 11/2 proton and a h 11/2 quasi-neutron. With pairing treated by the BCS approximation, the present quasiparticle PRM is aimed at simulating one proton and many neutron holes coupled with a triaxial rotor. After a detailed analysis of the angular momentum orientations, energy separation between the partner bands, and behavior of electromagnetic transitions, for the first time we find aplanar rotation or equivalently chiral geometry beyond the usual one proton and one neutron hole coupled with a triaxial rotor.

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Magnetic dipole and electric quadrupole rotational structures and chirality inRh105

Cited by 77 publications

References 34 publications

Multiple Chiral Doublet Bands of Identical Configuration inRh103

Multiple Chiral Doublet Bands of Identical Configuration inRh103

Evidence for Multiple Chiral Doublet Bands inCe133

Chiral Bands for Quasi-Proton and Quasi-Neutron Coupling With a Triaxial Rotor

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