Tools for estimating fake/non-prompt lepton backgrounds with the ATLAS detector at the LHC

The ATLAS Collaboration

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Measurements and searches performed with the ATLAS detector at the CERN LHC often involve signatures with one or more prompt leptons. Such analyses are subject to 'fake/non-prompt' lepton backgrounds, where either a hadron or a lepton from a hadron decay or an electron from a photon conversion satisfies the prompt-lepton selection criteria. These backgrounds often arise within a hadronic jet because of particle decays in the showering process, particle misidentification or particle interactions with the detector material. As it is challenging to model these processes with high accuracy in simulation, their estimation typically uses data-driven methods. Three methods for carrying out this estimation are described, along with their implementation in ATLAS and their performance.

Original languageEnglish (US)
Article numberT11004
JournalJournal of Instrumentation
Volume18
Issue number11
DOIs
StatePublished - Nov 1 2023

Keywords

  • Analysis and statistical methods
  • Particle identification methods

ASJC Scopus subject areas

  • Instrumentation
  • Mathematical Physics

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