Twisted mass QCD and the FNAL heavy quark formalism

TL;DR

This paper explores incorporating a twisted mass term into the FNAL heavy quark formalism at tree level, revealing that at maximal twist, the KLM factor becomes independent of the heavy mass, simplifying calculations.

Contribution

It introduces a modification to the FNAL heavy quark formalism with a twisted mass term and analyzes its effects at maximal twist.

Findings

KLM factor is independent of heavy mass at maximal twist

Modification simplifies heavy quark calculations

Tree-level analysis of twisted mass inclusion

Abstract

At tree level, I discuss modifying the FNAL heavy quark formalism to include a twisted mass term. I find that at maximal twist the so called KLM factor is independent of the heavy mass.