# D-Meson Mixing in 2+1-Flavor Lattice QCD

## TL;DR

This paper reports on lattice QCD calculations of neutral D-meson mixing, including all relevant operators, with results comparable in precision to existing collaborations, advancing understanding of charm quark interactions.

## Contribution

It provides the first comprehensive lattice QCD results for all operators contributing to D-meson mixing, including beyond Standard Model effects.

## Key findings

- Matrix elements for all five operators computed
- Results have similar uncertainty to previous studies
- Advances understanding of D-meson mixing and potential new physics

## Abstract

We present results for neutral D-meson mixing in 2+1-flavor lattice QCD. We compute the matrix elements for all five operators that contribute to D mixing at short distances, including those that only arise beyond the Standard Model. Our results have an uncertainty similar to those of the ETM collaboration (with 2 and with 2+1+1 flavors). This work shares many features with a recent publication on B mixing and with ongoing work on heavy-light decay constants from the Fermilab Lattice and MILC Collaborations.