W Mass as a Calibration of the Jet Energy Scale at ATLAS
Daniel Goldin
TL;DR
This paper proposes using top-antitop pair events at the LHC, specifically the hadronic W decays, to calibrate the jet energy scale and resolution, leveraging their high production rate and clean signature.
Contribution
It introduces a novel calibration method utilizing W mass reconstruction from top decays at ATLAS, enhancing jet energy scale accuracy.
Findings
Effective calibration of jet energy scale using W mass
High statistical precision due to copious top events
Improved jet resolution measurements
Abstract
Top-antitop pairs will be copiously produced at the LHC, at a rate of roughly one per second at a luminosity of10^{33} cm^{-2} s^{-1}. These events have low background and produce large numbers of jets via the hadronic decay of the W's which may be used to calibrate the jet energy scale and resolution with experimental data and simulations.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions