Workshop on BSM Physics at Eta-Factories

Whither studies of eta to pi pi --- probes of CP violation or of dark sectors?

Not scheduled

20m

Lecture Hall A, L317 (Lund University Fysiska Institutionen, Sweden)

Speaker

Susan Gardner (University of Kentucky)

Description

The decay rate for $\eta\to \pi\pi$ is known to be vanishingly small in the SM, and it is similarly so in the presence of strong CP violation. Here we consider whether new sources of CP violation, as encoded in SMEFT, or the emission of a dark-sector particle, such as the axion, can give rise to potentially observable effects $-$ and how the two mechanisms might be distinguished.

Presentation materials

svg_eta2pi_Lund_16may25.pdf