The 4th Topics of Particle, Astro and Cosmo Frontiers (TOPAC 2026) 第4届粒子物理、天体物理和宇宙学前沿国际学术研讨会

Session

Plenary Theory 1: Flavor and CP Violation (Room 567, Chair Zhi-Wei Wang)

17 Apr 2026, 08:40

90. VISHnu

Raymond Volkas (The University of Melbourne)

17/04/2026, 08:40

I will describe the VISHnu model, which is a DFSZ axion-majoron model variant with the following features: (a) No cosmological domain wall problem, thus permitting a post-inflationary axion. (b) Identification of the Peccei-Quinn breaking scale with the type-I seesaw scale, thus explaining the tiny neutrino masses. (c) Baryogenesis via leptogenesis. (d) Successful inflation driven by a...

127. How Viable is Electroweak Baryogenesis?

Prof. Michael Ramsey-Musolf

17/04/2026, 09:10

81. Flavor Physics in the Precision Era: Rare Decays, Lepton Universality, and New-Physics Targets

Xin-Qiang Li (Central China Normal Univerisy)

17/04/2026, 09:40

With the steady running of the LHCb and Belle II experiments, as well as the precision achieved from Lattice QCD for non-perturbative hadronic parameters, we are entering the era of precision flavor physics. In this talk, I will introduce the role played by flavor physics in precisely testing the Standard Model and indirectly probing physics beyond it. Then, I will give some examples to...

93. Baryonic CP Violation in Theory

Fu-Sheng Yu (Lanzhou University)

17/04/2026, 10:10

The first observation of CP violation in baryon decays in last year is a historic milestone for particle physics. This talk summarizes theoretical progress in the field, highlighting the accurate predictions preceding the discovery and discussing subsequent developments.