Oct 2021 - Sept 2022

Mario Reig Lopez : The axion-photon coupling and grand unified theories

Name: Mario Reig Lopez : The axion-photon coupling and grand unified theories
Start: 2022-03-10T14:00:00+00:00
End: 2022-03-10T15:00:00+00:00
Location: No location set

Thursday 10 Mar 2022, 14:00 → 15:00 Europe/London

Description

The axion-photon coupling and grand unified theories

Abstract: Being topological quantities, the axion couplings to gauge bosons contain important information about the UV. Among them, the axion-photon coupling is of particular interest experimentally. In this talk I show how in Grand Unified Theories, and in the massless axion limit, only the QCD axion couples to photons. More generally - and due to kinetic or mass mixing - additional, light axion-like particles can appear but with an enormously suppressed coupling to photons.

Zoom link: IPPP Seminars (Thursday at 2 pm UK time)

https://durhamuniversity.zoom.us/j/99420124988?pwd=ZEFLSDB3THJtaWZOTU54R25mT1NuZz09

Meeting ID: 994 2012 4988