skip to content

Department of Applied Mathematics and Theoretical Physics

Weak Parity Violation means that the the weak force in the Standard Model exhibits maximal parity violation, coupling exclusively to left-handed fermions. In contrast, the Strong CP Problem asks why strong force appears to preserve CP symmetry so precisely—namely, why the effective QCD θ-angle is zero or extremely small. In this talk, I will discuss how these two long-standing puzzles in the weak and strong sectors may be intimately connected and resolved through Symmetric Mass Generation (SMG) — a novel mechanism by which matters acquire mass without spontaneous symmetry breaking, within an anomaly-free symmetry framework. I will illustrate the idea using a set of toy models, possibly formulated in dimensions other than 4, that capture the essential features of this proposed resolution. References therein: arXiv 2204.14271, 2207.14813, 2212.14036.

Further information

Time:

22Oct
Oct 22nd 2025
13:15 to 14:45

Venue:

Seminar Room 2, Newton Institute

Speaker:

Juven Wang (London Institute for Mathematical Sciences)

Series:

Isaac Newton Institute Seminar Series