The top-quark's running mass
S. Moch, U. Langenfeld, P. Uwer
TL;DR
This paper explores how to directly measure the top-quark's running mass using total cross section data, emphasizing the stability and convergence of theoretical predictions in the MSbar scheme.
Contribution
It demonstrates a method for determining the running top-quark mass from cross section measurements with stable and rapidly converging theoretical predictions.
Findings
MSbar scheme predictions are stable under scale variations
Perturbative expansion shows rapid convergence
Parton dynamics explain stability and convergence
Abstract
We discuss the direct determination of the running top-quark mass from measurements of the total cross section of hadronic top-quark pair-production. The theory predictions in the MSbar scheme are very stable under scale variations and show rapid apparent convergence of the perturbative expansion. These features are explained by studying the underlying parton dynamics.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions