# **AT 1PM** QCD corrections to the running of the electroweak couplings

#### **AT 1PM** QCD corrections to the running of the electroweak couplings

- Event time: 1:00pm
- Event date: 7th March 2018
- Speaker: Dr Gregorio Herdoiza (Universidad AutÃ³noma de Madrid)
- Location: Higgs Centre Seminar Room, 4305 James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

The electromagnetic coupling and the weak mixing angle receive sizeable contributions to their running from non-perturbative QCD effects. The prospects for a future international linear collider suggest that the uncertainty on the running of the QED coupling could become a limiting factor in the global fit of the electroweak sector of the Standard Model. An experimental programme aiming at the measurement of the weak mixing angle at low-energies is also being carried out. I will present a lattice QCD calculation of the running of these couplings in an energy regime, around the hadronic scale, that is relevant for present experimental and phenomenological studies.

#### Event resources

### About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..