第十届粒子所“青年之星”2024年度学术论坛

Session

Wednesday Morning Second Session

20 Nov 2024, 10:40

9409

Contribution list Timetable

5. Neutrinoless double beta decay in multiple isotopes for fingerprints identification of operators and models

Ms Yu-Qi Xiao

20/11/2024, 10:40

Neutrinoless double beta (0νββ) decay is the most promising way to determine whether neutrinos are Majorana particles. There are many experiments based on different isotopes searching for 0νββ decay. Combining the searches of 0νββ decay in multiple isotopes provides a possible method to distinguish operators and different models. The contributions to 0νββ decay come from standard, long-range,...

18. Study of τ− → ωπ−ντ decay in resonance chiral theory with tensor sources

Yuan-He Zou (CCNU)

20/11/2024, 11:00

In this work, we make a study of the τ− → ωπ−ντ decay in the framework of low energy effective field theory.The JPG decompositions of the quark currents and the ωπ final state show that, besides the Standard Model vector interaction, only the non-standard tensor interaction can have a non-zero contribution to the decay. To discuss its effect, a reliable calculation of the ωπ tensor form...

30. The Chiral Transition and Shear Viscosity in the NJL Model under a Magnetical Background

屹威 邱 (China Three Gorge University)

20/11/2024, 11:20

Abstract: We investigate the chiral phase transition and the properties of the shear viscosity coefficient in a Nambu-Jona-Lasinio (NJL) model at finite temperature and chemical potential. We compare the contributions from the tensor spin polarization (TSP) and anomalous magnetic moment (AMM) of quarks in (2+1)-flavor NJL model. For light $u$ and $d$ quarks, when TSP and AMM are not...

14. Dynamical relaxation behaviors of a critical quench

银涛 邹 (华中师范大学)

20/11/2024, 11:40

We study the universal dynamical relaxation behaviors of a quantum XY chain following a quench, paying special attention to the case in which the initial state is a critical ground state, or the postquenched Hamiltonian is at a critical point of equilibrium quantum phase transition, or both of them are critical. In such a “critical quench,”we find very interesting real-time dynamical scaling...