Candidate multiple chiral doublets nucleus<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Rh</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>106</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>in a triaxial relativistic mean-field approach with time-odd fields

Yao, J. M.; Qi, B.; Zhang, S. Q.; Peng, J.; Wang, S. Y.; Meng, J.

doi:10.1103/physrevc.79.067302

Cited by 53 publications

(22 citation statements)

References 28 publications

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“…3(a) − state coupled to the odd particle in the f 7/2 orbital is small above proton number Z = 68. It is consistent with the lack of evidence for 3 orbitals on the nuclear shape, adiabatic and configurationfixed constrained triaxial CDFT calculations [28][29][30][31] with the newly proposed point-coupling energy density functional PC-PK1 [32] have been performed. The calculated potentialenergy surface (PES) in the β-γ plane (0 can be seen that the ground state of 155 Yb is oblate with β = 0.15.…”

Section: Discussionsupporting

confidence: 75%

Spectroscopy ofYb155: Structure evolution in theN=85isotones

Li¹,

Xu²,

Zhang³

et al. 2016

Phys. Rev. C

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High-spin states in 155 Yb have been studied via the 144 Sm( 16 O ,5n) 155 Yb reaction at a beam energy of 118 MeV. One negative-parity and one positive-parity cascade built on the νf 7/2 and νi 13/2 states, respectively, are established for the first time. The structures observed in 155 Yb are compared with those in the neighboring N = 85 isotones and with semiempirical shell-model (SESM) calculations. According to adiabatic and configuration-fixed constrained triaxial covariant density functional theory (CDFT) calculations, a coexistence of prolate and oblate shapes is predicted to exist in 155 Yb.

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Section: Discussionsupporting

confidence: 75%

Spectroscopy ofYb155: Structure evolution in theN=85isotones

Li¹,

Xu²,

Zhang³

et al. 2016

Phys. Rev. C

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“…Very recently, four-and six-quasiparticle chiral bands have also been observed in even-even nuclei of the A ≈ 130 mass region ( 136 Nd [18] and 138 Nd [19]). In most nuclei only one chiral doublet was observed, but in a limited subset of chiral nuclei two or more chiral doublets were observed ( 78 Br [20], 103 Rh [12], 105 Rh [13], 133 Ce [9], 136 Nd [18], 195 Tl [21], and possibly 107 Ag [22]), exhibiting the exotic phenomenon of multiple chiral doublet bands (MχD) [23][24][25][26][27][28][29][30][31]. In the even-even nucleus 136 Nd, the record of five nearly degenerate band pairs were identified, with properties in agreement with chiral interpretation within the tilted axis cranking constrained density functional theory (TAC-CDFT) framework [18], which were also successfully described in detail as chiral doublets in the framework of the multi-j shell particle rotor model (PRM) [31].…”

Section: Introductionmentioning

confidence: 99%

Chirality of Nd135 reexamined: Evidence for multiple chiral doublet bands

Lyu¹,

Petrache²,

Chen³

et al. 2019

Phys. Rev. C

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One new pair of positive-parity chiral doublet bands have been identified in the odd-A nucleus 135 Nd which together with the previously reported negative-parity chiral doublet bands constitute a third case of multiple chiral doublet (MχD) bands in the A ≈ 130 mass region. The properties of the MχD bands are well reproduced by constrained covariant density functional theory and particle rotor model calculations. The newly observed MχD bands in 135 Nd represents an important milestone in supporting the existence of MχD in nuclei.

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“…By minimizing the energy with respect to the γ deformation, both adiabatic and configuration-fixed constrained triaxial RMF calculations [6,11,[29][30][31]] have been performed for the possible configurations associated with the observed bands in 133 La. In the constrained RMF calculations, no rotation is considered.…”

Section: Potential-energy Curve As Function Of the β2 Deformationmentioning

confidence: 99%

Triaxial-band structures, chirality, and magnetic rotation in La133

et al. 2016

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The structure of 133 La has been investigated using the 116 Cd( 22 Ne,4pn) reaction and the Gammasphere array. Three new bands of quadrupole transitions and one band of dipole transitions are identified and, the previously reported level scheme is revised and extended to higher spins. The observed structures are discussed using the cranked Nilsson-Strutinsky formalism, covariant density functional theory, and the particle-rotor model. Triaxial configurations are assigned to all observed bands. For the high-spin bands it is found that rotations around different axes can occur, depending on the configuration. The orientation of the angular momenta of the core and of the active particles is investigated, suggesting chiral rotation for two nearly degenerate dipole bands and magnetic rotation for one dipole band. It is shown that the h 11/2 neutron holes present in the configuration of the nearly degenerate dipole bands have significant angular momentum components not only along the long axis, but also along the short axis, contributing to the balance of the angular momentum components along the short and long axes and thus giving rise to a chiral geometry.

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Candidate multiple chiral doublets nucleusRh106in a triaxial relativistic mean-field approach with time-odd fields

Cited by 53 publications

References 28 publications

Spectroscopy ofYb155: Structure evolution in theN=85isotones

Spectroscopy ofYb155: Structure evolution in theN=85isotones

Chirality of Nd135 reexamined: Evidence for multiple chiral doublet bands

Triaxial-band structures, chirality, and magnetic rotation in La133

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