# Determination of the charm quark mass in lattice QCD with 2+1 flavours on fine lattices

Particle Physics Theory seminar

#### Determination of the charm quark mass in lattice QCD with 2+1 flavours on fine lattices

• Event time: 2:00pm until 3:00pm
• Event date: 24th November 2021
• Speaker: (School of Physics & Astronomy, University of Edinburgh)
• Location: Higgs Centre Seminar Room, Room 4305,

### Event details

In this talk we present a determination of the charm quark mass in lattice QCD with three active quark flavours. We discuss different approaches to non-perturbative renormalisation on the lattice and the corresponding systematic uncertainties. The numerical quark mass calculation is based on PCAC masses extracted from $N_\mathrm{f}=2+1$ flavour gauge field ensembles at five different lattice spacings in a range from 0.087 fm down to 0.039 fm allowing for a controlled continuum limit. The lattice action consists of the $\mathrm{O}(a)$ improved Wilson-clover action and a tree-level improved Symanzik gauge action. The quark masses are non-perturbatively $\mathrm{O}(a)$ improved employing the Symanzik-counterterms available for this discretisation of QCD.

### 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..