Constraining New Physics from D0-anti-D0 mixing

TL;DR

This paper reviews how measurements of D0-anti-D0 mixing constrain potential New Physics models, using effective Hamiltonian analysis and QCD corrections, with implications for LHC discoveries.

Contribution

It provides a comprehensive analysis of constraints on New Physics from D-meson mixing, including a broad set of models and QCD effects, surpassing other search methods.

Findings

Strong constraints on New Physics models from D0-anti-D0 mixing

Most models can be tightly constrained using existing data

Implications for potential discoveries at the LHC

Abstract

I review constraints on possible New Physics interactions from D0-anti-D0 mixing measurements. I consider the most general low energy effective Hamiltonian and include leading order QCD running of effective operators. I discuss constraints from an extensive list of popular New Physics models, each of which could be discovered at the LHC, that can generate these operators. In most of the scenarios, strong constraints that surpass those from other search techniques could be placed on the allowed parameter space using the existent evidence for observation of D-meson mixing.