Theoretical issues on the top mass reconstruction at hadron colliders

TL;DR

This paper discusses theoretical challenges in accurately reconstructing the top quark mass at hadron colliders, focusing on the relation between measured and theoretical masses and uncertainties from bottom quark fragmentation.

Contribution

It provides a critical analysis of the relation between measured top mass and theoretical definitions, and summarizes recent Monte Carlo studies on bottom quark fragmentation uncertainties.

Findings

Debates the relation between measured and pole/MSbar top masses.

Summarizes recent Monte Carlo studies on bottom quark fragmentation.

Highlights theoretical issues affecting top mass reconstruction.

Abstract

I discuss a few selected topics related to the reconstruction of the mass of the top quark at hadron colliders. In particular, the relation between the measured top mass and theoretical definitions, such as the pole or MSbar mass, is debated. I will also summarize recent studies on the Monte Carlo uncertainty due to the fragmentation of bottom quarks in top decays.