# Higher dimensional HQET parameters

## TL;DR

This paper introduces a general method for constructing higher-dimensional HQET operators involving two heavy quarks and multiple derivatives, addressing the need for precise theoretical tools in light of increasing experimental accuracy.

## Contribution

A novel, systematic approach for building higher-dimensional HQET operators with two heavy quarks and arbitrary covariant derivatives.

## Key findings

- Method simplifies the construction of complex HQET operators
- Enables inclusion of higher-dimensional effects in theoretical predictions
- Facilitates more accurate modeling of strong interaction effects

## Abstract

Effective field theories such as Heavy Quark Effective Theory (HQET) are indispensable tools in controlling the effects of the strong interaction. The increasing experimental precision requires the knowledge of higher dimensional operators. We present a general method that allows for an easy construction of HQET operators that contain two heavy quarks and any number of covariant derivatives.