Precision Top Mass Measurement Using Energy Correlators

Author(s)
Jack Holguin, Ian Moult, Aditya Pathak, Massimiliano Procura, Robert Schöfbeck, Dennis Schwarz
Abstract

Precision top mass measurements at hadron colliders have been notoriously difficult. The fundamental challenge in the current approaches lies in achieving simultaneously high top mass sensitivity and good theoretical control. Inspired by the use of standard candles in cosmology, we overcome this problem by showing that a single energy correlator-based observable that reflects the characteristic angular scales associated with both the W-boson and top quark can be constructed. This gives direct access to the dimensionless quantity mt/mW, from which mt can be extracted in a well-defined short-distance mass scheme as a function of the well-known mW. A Monte-Carlo-based study is performed to demonstrate the properties of our observable and the statistical feasibility of its extraction from the Run 2 and 3 and High-Luminosity LHC data sets. The resulting mt has remarkably small uncertainties from hadronization effects and is insensitive to the underlying event and parton distribution functions. Our proposed observable provides a road map for a rich program to achieve a top mass determination at the LHC with record precision.

Organisation(s)
Particle Physics
External organisation(s)
University of Manchester, Institut Polytechnique de Paris, Yale University, Deutsches Elektronen-Synchrotron DESY, Österreichische Akademie der Wissenschaften (ÖAW)
Journal
Proceedings of Science
Volume
449
No. of pages
8
DOI
https://doi.org/10.48550/arXiv.2311.14389
Publication date
03-2024
Peer reviewed
Yes
Austrian Fields of Science 2012
103012 High energy physics
ASJC Scopus subject areas
General
Portal url
https://ucrisportal.univie.ac.at/en/publications/precision-top-mass-measurement-using-energy-correlators(860a8cf0-332b-44f1-b292-63aff0f18021).html