13–16 May 2025
Lund University Fysiska Institutionen, Sweden
Europe/Stockholm timezone

Axio-hadronic $\eta/\eta^{\prime}$ decays

16 May 2025, 10:00
30m
Lecture Hall A, L317 (Lund University Fysiska Institutionen, Sweden)

Lecture Hall A, L317

Lund University Fysiska Institutionen, Sweden

Speaker

Sergi Gonzalez-Solis (University of Barcelona)

Description

With upcoming $\eta/\eta^{\prime}$ factories in the horizon, dedicated searches for hadronic ALPs would open a new window into the exploration of strong CP solutions and low scale dark sectors. In this talk, we present branching ratio sensitivities of the axio-hadronic $\eta/\eta^{\prime}\to\pi\pi a$ decays, where $a$ is an axion or axion-like particle (ALP), using the leading order ALP-ChPT Lagrangian supplemented by dispersion relations to include the effects of pion-pion final state interactions. Decay channels with multiple emission of ALPs will be also briefly discussed.

Author

Sergi Gonzalez-Solis (University of Barcelona)

Co-author

Presentation materials