Precision Top Mass Measurement Using Energy Correlators - Archive ouverte HAL
Communication Dans Un Congrès Année : 2024

Precision Top Mass Measurement Using Energy Correlators

Ian Moult
  • Fonction : Auteur
Aditya Pathak
  • Fonction : Auteur
Massimiliano Procura
  • Fonction : Auteur
Robert Schöfbeck
  • Fonction : Auteur
Dennis Schwarz
  • Fonction : Auteur

Résumé

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 can be constructed that reflects the characteristic angular scales associated with both the $W$-boson and top quark. 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.

Dates et versions

hal-04344214 , version 1 (14-12-2023)

Identifiants

Citer

Jack Holguin, Ian Moult, Aditya Pathak, Massimiliano Procura, Robert Schöfbeck, et al.. Precision Top Mass Measurement Using Energy Correlators. 2023 European Physical Society Conference on High Energy Physics , Aug 2023, Hamburg, Germany. pp.312, ⟨10.22323/1.449.0312⟩. ⟨hal-04344214⟩
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