International Conference on Chirality and Wobbling in Atomic Nuclei

Session

Session

11 juil. 2023, 08:30

Présidents de session

Session: 3

• Ernest Grodner (HIL Warsaw)

Session: 4

• Bin Qi (Shangong University)

5. Experimental proof of chirality by absolute transition probabilities

Julian Srebrny (Heavy Ion Laboratory, University of Warsaw)

11/07/2023 08:30

Absolute values of EM transition probabilities in partner bands provide a stringent test of nuclear chirality. I discuss eight nuclei, $^{128}$Cs, $^{126}$Cs, $^{124}$Cs, $^{130}$Cs, $^{135}$Nd, $^{76}$Br, $^{80}$Br and $^{194}$Tl, for which such data were obtained through lifetime measurements using the Doppler Shift Attenuation Method. Analysis of the DSAM data was performed with the...

30. Tilted precession in triaxial nuclei calculated with the quasiparticle-rotor model

Elena Lawrie (iThemba LABS, National Research Foundation, PO Box 722, Somerset West 7129, and Physics Department, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa)

11/07/2023 09:00

Nuclei with triaxial shape can rotate around their three axes, which produces a number of excited rotational bands for each single-particle configuration. This three-dimensional rotation can be visualised in the angular moment space, it represents a precession of the total angular momentum along an axis, and looks like the precession of a rotating top. In even-even nuclei the precession gives...

14. Structure of odd-mass $\gamma$-soft nuclei within the IBFM

Kosuke Nomura (Hokkaido University)

11/07/2023 09:30

Shapes and the related spectroscopy of odd-A and odd-odd nuclei are studied using the framework of nuclear density functional theory and particle-boson coupling scheme. The Hamiltonian of the interacting boson-fermion model describing the low-lying structure of odd nuclei is constructed based on the microscopic self-consistent mean-field calculations with a choice of universal energy density...

34. Chiral dynamics in “rigid” and “soft” triaxial nuclei

Pengwei Zhao (School of Physics, Peking University, Beijing, China)

11/07/2023 10:30

Chirality is a well-known phenomenon in many fields, such as chemistry, biology, molecular physics, and particle physics. The study of nuclear chirality has attracted a lot of attention since it was originally suggested for triaxial nuclei in 1997. The experimental evidence of nuclear chirality is the so-called chiral doublet bands, which have been observed in many nuclei. Theoretically, there...

10. Study of chirality and wobbling within CDFT+PRM

Qibo Chen (East China Normal University)

11/07/2023 11:00

Chirality and wobbling are two unique fingerprints for a triaxial nuclear shape. In both of case, the triaxial deformation parameters and the configuration information are of importance. The triaxial deformation determines whether the chiral and wobbling mode exists or not, while the configuration determines what kind of the modes. Therefore, a reliable theoretical approach is needed to get...

1. Spin dynamics of triaxial nuclei with quasiparticle alignments

Radu Budaca ("Horia Hulubei" National Institute for R&D in Physics and Nuclear Engineering)

11/07/2023 11:30

A system composed of a triaxial core with non-axial rigid quasiparticle alignments is investigated in a semiclassical approach. The classical features of the chiral geometry and wobbling motion emerging in atomic nuclei and the associated dynamics are investigated for various core deformations and single-particle alignments. Distinct dynamical characteristics are identified in specific angular...