Présidents de session
Session: 9
- Zhipan Li (Southwest University, Chonqing)
Session: 10
- Yu Zhang (Liaoning University, Shenyang)
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Yu Zhang (Department of Physics, Liaoning Normal University, Dalian 116029, China)13/07/2023 14:00
In the core-particle coupling scheme, a collective model is proposed to describe high-spin phenomena in the triaxial odd-A and odd-odd systems with their even-even cores assumed to follow a critical point symmetry. It is shown that the model Hamiltonian can be approximately solved with the solutions being expressed in terms of the Bessel functions of irrational orders, which in turn generate a...
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Yakun Wang (Peking University)13/07/2023 14:30
The relativistic configuration-interaction density functional theory, which combines the advantages of configuration-interaction shell model and relativistic density functional theory and allows to treat nuclear spectroscopic properties in the laboratory frame, is applied to investigate the chiral rotation in $^{130}$Cs. Both energy spectra and transition probabilities of the chiral doublets...
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Yuanyuan Wang (NCEPU)13/07/2023 15:00
Chirality is a subject of general interest in natural science. Nuclear chirality was first predicted in 1997, and up to now 62 candidate chiral doublet bands in 49 nuclei have been reported. Based on the covariant density functional theory, a phenomenon named multiple chiral doublets (MχD), i.e., more than one pair of chiral doublet bands in one single nucleus, was predicted in 2006, which has...
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Jian Li (Jilin University)13/07/2023 16:00
Following the reports of candidate chiral doublet bands observed in cesium isotopes, the possible chiral candidates and the evolution of three-dimensional rotation in $^{120-134}{\textrm{Cs}}$ are investigated within the microscopic three-dimensional tilted axis cranking covariant density functional theory (3DTAC-CDFT). By investigating the evolution of the polar angle $\theta$ and azimuth...
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Lang Liu (Jiangnan University, China)13/07/2023 16:30
Based on covariant density functional theory, the pairing correlations are studied with the shell-model-like approach (SLAP), in which the particle numbers are conserved strictly, and the blocking effect is handled precisely.
The temperature-dependent S-shaped heat capacity curve was obtained for even-even nuclei, which predicts the occurrence of the pairing phase transition near the...
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Yiping Wang13/07/2023 17:00
The microscopic understanding on the influence of the pairing correlations or the superfluidity on the nuclear chiral rotation has been a longstanding and challenging problem. Based on the three-dimensional cranking covariant density functional theory, a shell-model-like approach with exact particle number conservation is implemented to take into account the pairing correlations and applied...
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Marco Rocchini (INFN Sezione di Firenze)13/07/2023 17:30
Results from recent experiments studying nuclei in the $^{78}$Ni region suggest that the N = 50 shell closure persists, in agreement with state-of-the-art shell model calculations. However, how collectivity manifests and evolves in this region of the Segrè chart is still an open question, particularly concerning phenomena such as vibrational modes, triaxiality and shape coexistence. This is...
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