Understanding template methods for top polarisation measurements
J. A. Aguilar-Saavedra
TL;DR
This paper examines the use of template methods for top polarisation measurements at the LHC, emphasizing the importance of quantum interference effects and proper template definitions for accurate experimental-theoretical comparisons.
Contribution
It highlights the overlooked role of quantum interference in template methods and clarifies the correct definition of polarization templates for top quark measurements.
Findings
Quantum interference significantly impacts polarization measurements.
Proper template definitions are crucial for matching experimental data with theory.
The paper provides guidance on implementing accurate templates in analyses.
Abstract
Top polarisation measurements at the LHC are often performed using template methods. I discuss the role of quantum interference between polarisation states - which is mostly overlooked in the literature. Furthermore, I argue which is the correct definition of the `templates' of definite polarisations, in order to match the experimental measurements with meaningful theoretical predictions.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions