Heavy Domain Wall Fermions: The RBC and UKQCD charm physics program

TL;DR

This paper reviews the RBC and UKQCD collaborations' charm physics program using domain wall fermions, focusing on simulations with physical pion mass to determine decay constants, quark masses, and bag parameters.

Contribution

It provides a comprehensive update on the status of charm physics calculations with domain wall fermions, including new results with physical pion mass ensembles.

Findings

Updated decay constants $f_D$, $f_{D_s}$

Charm quark mass estimates

Heavy-light and heavy-strange bag parameters

Abstract

We review the domain wall charm physics program of the RBC and UKQCD collaborations based on simulations including ensembles with physical pion mass. We summarise our current set-up and present a status update on the decay constants $f_D$, $f_{D_s}$, the charm quark mass, heavy-light and heavy-strange bag parameters and the ratio $\xi$.