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相关论文: Chirality in odd-$A$ nucleus $^{135}$Nd in particl…

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The dynamics of chiral nuclei is investigated for the first time with the time-dependent and tilted axis cranking covariant density functional theories on a three-dimensional space lattice in a microscopic and self-consistent way. The…

核理论 · 物理学 2022-02-08 Z. X. Ren , P. W. Zhao , J. Meng

A reflection-asymmetric triaxial particle rotor model with three quasiparticles and a reflection-asymmetric triaxial rotor is developed, and applied to investigate the observed multiple chiral doublets (M\c{hi}D) candidates with octupole…

核理论 · 物理学 2021-08-06 Y. P. Wang , Y. Y. Wang , J. Meng

The lowest six rotational bands have been studied in the particle-rotor model with the particle-hole configuration $\pi h^1_{11/2}\otimes\nu h^{-1}_{11/2}$ and different triaxiality parameter $\gamma$. Both constant and spin-dependent…

核理论 · 物理学 2010-12-28 Q. B. Chen , J. M. Yao , S. Q. Zhang , B. Qi

The criteria for chiral doublet bands based on one particle and one hole coupled to a triaxial rotor have been summarized. Two representative cases in $A\sim100$ odd-odd nuclei, nearly degenerate $\Delta I =1$ doublet bands in $^{104}$Rh…

核理论 · 物理学 2008-11-26 S. Y. Wang , S. Q. Zhang , B. Qi , J. Meng

The phase transition of nuclei to increasing angular momentum (or spin) and excitation energy is one of the most fundamental topics of nuclear structure research. The odd-N nuclei with A equal 160 are widely considered belonging to the…

核理论 · 物理学 2018-01-31 H. B. Zhou , S. Huang , G. X. Dong , Z. X. Shen , H. J. Lu , L. L. Wang , X. J. Sun , F. R. Xu

The chiral geometry of the multiple chiral doublet bands with identical configuration is discussed for different triaxial deformation parameters $\gamma$ in the particle rotor model with $\pi h_{11/2}\otimes \nu h_{11/2}^{-1}$. The energy…

核理论 · 物理学 2016-08-03 Hao Zhang , Qibo Chen

A reflection-asymmetric triaxial particle rotor model (RAT-PRM) with a quasi-proton and a quasi-neutron coupled with a reflection-asymmetric triaxial rotor is developed and applied to investigate the multiple chiral doublet (M$\chi$D) bands…

核理论 · 物理学 2019-05-22 Y. Y. Wang , S. Q. Zhang , P. W. Zhao , J. Meng

The article explains on a non-expert level how triaxial rotating nuclei may attain a chiral structure.

科普物理 · 物理学 2024-05-13 S. Frauendorf

For the first time, the tilted axis cranking covariant density functional theory with pairing correlations has been formulated and implemented in a fully self-consistent and microscopic way to investigate the evolution of the spin axis and…

核理论 · 物理学 2015-09-22 P. W. Zhao , S. Q. Zhang , J. Meng

Chiral rotation observed in $^{128}$Cs is studied using the newly developed microscopic triaxial projected shell model (TPSM) approach. The observed energy levels and the electromagnetic transition probabilities of the nearly degenerate…

核理论 · 物理学 2015-06-03 G. H. Bhat , J. A. Sheikh , R. Palit

A triaxial particle-rotor Hamiltonian for three mutually perpendicular angular momentum vectors corresponding to two high-$j$ quasiparticles and the rotation of a triaxial collective core, is treated within a time-dependent variational…

核理论 · 物理学 2018-08-01 R. Budaca

In the sequel of the present study, we have investigated the rotational motion of triaxially deformed nucleus by using the microscopic framework of angular-momentum projection. The Woods-Saxon potential and the schematic separable-type…

核理论 · 物理学 2018-02-21 Mitsuhiro Shimada , Yudai Fujioka , Shingo Tagami , Yoshifumi R. Shimizu

The positive parity doublet bands based on the $\pi h_{11/2}\otimes\nu h_{11/2}$ configuration in $^{126}$Cs have been investigated in the two quasi-particles coupled with a triaxial rotor model. The energy spectra $E(I)$, energy staggering…

核理论 · 物理学 2008-11-26 S. Y. Wang , S. Q. Zhang , B. Qi , J. Meng

The pairing-plus-quadrupole Hamiltonian is diagonalized in a symmetry restored basis, i.e., the triaxial quasiparticle-states with angular momentum and particle number projections, and applied for chiral doublet bands in 128Cs. The observed…

核理论 · 物理学 2017-11-29 F. Q. Chen , Q. B. Chen , Y. A. Luo , J. Meng , S. Q. Zhang

The candidate chiral doublet bands recently observed in $^{126}$Cs have been extended to higher spins, several new linking transitions between the two partner members of the chiral doublet bands are observed, and $\gamma$$-$intensities…

核实验 · 物理学 2009-11-13 S. Y. Wang , Y. Z. Liu , T. Komatsubara , Y. J. Ma , Y. H. Zhang

To a phenomenological core described by the Generalized Coherent State Model a set of interacting particles are coupled. Among the particle-core states one identifies a finite set which have the property that the angular momenta carried by…

核理论 · 物理学 2014-07-21 A. A. Raduta , C. M. Raduta

Rotational bands with (neutron h_11/2)^1 (proton h_11/2)^1 configurations are studied using a particle-rotor model in which a proton and a neutron quasiparticles interacting through a zero-range force are coupled with a triaxial rotor. It…

核理论 · 物理学 2009-10-22 N. Tajima

The chiral doublets for nuclei in $A\sim100$ and $A\sim130$ regions have been studied with the particle-rotor model. The experimental spectra of chiral partners bands for four N=75 isotones in $A\sim130$ region have been well reproduced by…

核理论 · 物理学 2009-11-10 J. Peng , J. Meng , S. Q. Zhang

The open problem on whether or not the chirality exists in doublet bands M1 and M4 in light-mass even-even nucleus $^{60}$Ni is studied by adopting the recently developed fully quantal four-$j$ shells triaxial particle rotor model. The…

核理论 · 物理学 2019-06-26 J. Peng , Q. B. Chen

It is shown that the rotating mean field of triaxial nuclei can break the chiral symmetry. Two nearly degenerate $\Delta I =1 $ rotational bands originate from the left-handed and right-handed solution.

核理论 · 物理学 2009-11-06 V. I. Dimitrov , S. Frauendorf , F. Doenau