Preprint

PUBDB-2025-00608

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Top Quark Mass Extractions from Energy Correlators: A Feasibility Study

Holguin, J. ; Moult, I. ; Pathak, A. (Corresponding author)DESY* ; Procura, M. ; Schöfbeck, R. ; Schwarz, D.

2024

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Please use a persistent id in citations: doi:10.3204/PUBDB-2025-00608

Report No.: DESY-24-107; UWThPh 2024-14; arXiv:2407.12900

Abstract: In a recent article, we proposed an energy correlator-based method to achieve a precision top quark mass extraction from jet substructure, using the $W$-boson mass as a standard candle. In this paper, we perform an extensive event generator simulation study of this proposal, testing both its experimental viability, as well as its sensitivity to different subprocesses in the top quark production and decay. On the experimental side, we show that uncertainties in the jet energy scale, constituent energy scale, and tracking efficiency have a minimal effect. On the theoretical side, we find that our observable isolates the perturbative decay of the top quark, while nonperturbative physics, such as the modelling of color reconnection, and underlying event, have a negligible impact on the distribution. We conclude that our proposed measurement is resilient to the experimental and theoretical aspects of the hadron collider environment, with variations in model parameters consistently leading to $\lesssim 100~$MeV shifts in the measured top mass. Our results motivate precision theoretical calculations of the energy correlator on top decays, both analytic and using parton shower generators, and further exploration of the experimental measurement.

Note: 19 pages, 15 colorful figures; V2: The updated version includes improvements in the fitting strategy for the peak locations and a detailed discussion on the uncertainty breakdown. Conclusions from v1 unchanged

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. DFG project G:(GEPRIS)390831469 - EXC 2118: Precision Physics, Fundamental Interactions and Structure of Matter (PRISMA+) (390831469) (390831469)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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Database coverage:
; ; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Holguin, J. ; Moult, I. ; Pathak, A. (Corresponding author)DESY* ; Procura, M. ; Schöfbeck, R. ; Schwarz, D.Extern*
Top quark mass extractions from energy correlators: a feasibility study
Journal of high energy physics 04(4), 072 (2025) [10.1007/JHEP04(2025)072]2025     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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