Journal Article/Contribution to a conference proceedings

PUBDB-2024-01238

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Precision Top Mass Measurement Using Energy Correlators

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

2024
SISSA Trieste

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Please use a persistent id in citations: doi:10.22323/1.449.0312  doi:10.3204/PUBDB-2024-01238

Report No.: DESY-23-189; arXiv:2311.14389

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 $m_{t}/m_{W}$, from which $m_{t}$ can be extracted in a well-defined short-distance mass scheme as a function of the well-known $m_{W}$. 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 $m_t$ 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.

Keyword(s): top: mass ; parton: distribution function ; energy: correlation function ; hadronization: effect ; CERN LHC Coll ; underlying event ; sensitivity ; statistical ; hadron ; cosmological model

Note: 6 pages, 5 figures, Proceedings of the European Physical Society Conference on High Energy Physics (EPS-HEP2023) 21-25 August 2023, Hamburg, Germany

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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; ; ; ; DOAJ Seal ; SCOPUS

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Holguin, J. ; Moult, I. ; Pathak, A. (Corresponding author)DESY* ; Procura, M. ; Schöfbeck, R. ; Schwarz, D.
Precision Top Mass Measurement Using Energy Correlators
[10.3204/PUBDB-2023-07714]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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