Model-independent search for the presence of new physics in events including H → γγ with √s = 13 TeV pp data recorded by the ATLAS detector at the LHC
department or school: Science, Faculty of
department or school: TRIUMF
department or school: Non UBC
department or school: Physics and Astronomy, Department of
data provider: DSpace
identifier citation: Journal of High Energy Physics. 2023 Jul 24;2023(7):176
rights copyright: The Author(s)
creator: ATLAS Collaboration
issued: 2023-09-12T22:00:50Z
issued: 2023-07-24
description: A model-independent search for new physics leading to final states containing a Higgs boson, with a mass of 125.09 GeV, decaying to a pair of photons is performed with 139 fb−1 of √ s = 13 TeV pp collision data recorded by the ATLAS detector at the Large Hadron Collider at CERN. This search examines 22 final states categorized by the objects that are produced in association with the Higgs boson. These objects include isolated electrons or muons, hadronically decaying τ -leptons, additional photons, missing transverse momentum, and hadronic jets, as well as jets that are tagged as containing a b-hadron. No significant excesses above Standard Model expectations are observed and limits on the production cross section at 95% confidence level are set. Detector efficiencies are reported for all 22 signal regions, which can be used to convert detector-level cross-section limits reported in this paper to particle-level cross-section constraints.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/85893
note: JHEP07(2023)176Published for SISSA by SpringerReceived: January 26, 2023Accepted: June 26, 2023Published: July 24, 2023Model-independent search for the presence of newphysics in events including H → γγ with√s = 13TeV pp data recorded by the ATLASdetector at the LHCThe ATLAS collaborationE-mail: atlas.publications@cern.chAbstract: A model-independent search for new physics leading to final states containinga Higgs boson, with a mass of 125.09GeV, decaying to a pair of photons is performed with139 fb−1 of√s = 13TeV pp collision data recorded by the ATLAS detector at the LargeHadron Collider at CERN. This search examines 22 final states categorized by the objectsthat are produced in association with the Higgs boson. These objects include isolatedelectrons or muons, hadronically decaying τ -leptons, additional photons, missing transversemomentum, and hadronic jets, as well as jets that are tagged as containing a b-hadron.No significant excesses above Standard Model expectations are observed and limits on theproduction cross section at 95% confidence level are set. Detector efficiencies are reportedfor all 22 signal regions, which can be used to convert detector-level cross-section limitsreported in this paper to particle-level cross-section constraints.Keywords: Hadron-Hadron Scattering, Higgs PhysicsArXiv ePrint: 2301.10486Open Access, Copyright CERN,for the benefit of the ATLAS Collaboration.Article funded by SCOAP3.https://doi.org/10.1007/JHEP07(2023)176JHEP07(2023)176Contents1 Introduction 12 ATLAS detector 33 Data and Monte Carlo samples 43.1 Data sample 43.2 Monte Carlo samples 44 Object and event selection 84.1 Object definitions 84.2 Event preselection 95 Signal regions 96 Signal and background modelling 126.1 Modelling of BSM and SM Higgs boson production 126.2 Continuum background modelling 136.3 Modelling of the background in the multilepton signal region 137 Systematic uncertainties 147.1 Systematic uncertainties in modelling mγγ for SM and BSM Higgs bosonpr…
has type: Article
is shown at: 10.14288/1.0435861
language: eng
peer review status: Reviewed
provider: Vancouver : University of British Columbia Library
publisher: Springer Berlin Heidelberg
publisher DOI: 10.1007/JHEP07(2023)176
rights: Attribution 4.0 International (CC BY 4.0)
rights URI: http://creativecommons.org/licenses/by/4.0/
scholar level: Faculty
scholar level: Researcher
subject: Hadron-Hadron Scattering
subject: Higgs Physics
type: Text
identifier URI: http://hdl.handle.net/2429/85893