Search for heavy resonances in final states with four leptons and missing transverse momentum or jets in pp collisions at s = 13 TeV with the ATLAS detector
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. 2024 Oct 17;2024(10):130
rights copyright: The Author(s)
creator: ATLAS Collaboration
issued: 2024-10-24T22:23:43Z
issued: 2024-10-17
description: Abstract A search for a new heavy boson produced via gluon-fusion in the four-lepton channel with missing transverse momentum or jets is performed. The search uses proton-proton collision data equivalent to an integrated luminosity of 139 fb−1 at a centre-of-mass energy of 13 TeV collected by the ATLAS detector between 2015 and 2018 at the Large Hadron Collider. This study explores the decays of heavy bosons: R → SH and A → ZH, where R is a CP-even boson, A is a CP-odd boson, H is a CP-even boson, and S is considered to decay into invisible particles that are candidates for dark matter. In these processes, S → invisible and H → ZZ. The Z boson associated with the heavy scalar boson H decays into all decay channels of the Z boson. The mass range under consideration is 390–1300 (320–1300) GeV for the R (A) boson and 220–1000 GeV for the H boson. No significant deviation from the Standard Model backgrounds is observed. The results are interpreted as upper limits at a 95% confidence level on the cross-section times the branching ratio of the heavy resonances.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/89506
note: JHEP10(2024)130PuAlished for SISS Ay SpringerReceived: January 11, 2024Revised: August 22, 2024Accepted: September 30, 2024Published: October 17, 2024Search for heavy resonances in final states with fourleptons and missing transverse momentum or jets in ppcollisions at √s = 13TeV with the ATLAS detectorThe ATLAS collaborationE-mail: atlas.publications@cern.chAbstract: A search for a new heavy boson produced via gluon-fusion in the four-leptonchannel with missing transverse momentum or jets is performed. The search uses proton-proton collision data equivalent to an integrated luminosity of 139 fb−1 at a centre-of-massenergy of 13TeV collected by the ATLAS detector between 2015 and 2018 at the Large HadronCollider. This study explores the decays of heavy bosons: R→ SH and A→ ZH , where R isa CP-even boson, A is a CP-odd boson, H is a CP-even boson, and S is considered to decayinto invisible particles that are candidates for dark matter. In these processes, S → invisibleand H → ZZ. The Z boson associated with the heavy scalar boson H decays into all decaychannels of the Z boson. The mass range under consideration is 390–1300 (320–1300) GeVfor the R (A) boson and 220–1000GeV for the H boson. No significant deviation from theStandard Model backgrounds is observed. The results are interpreted as upper limits at a95% confidence level on the cross-section times the branching ratio of the heavy resonances.Keywords: Hadron-Hadron Scattering , Particle and Resonance ProductionArXiv ePrint: 2401.04742Open Access, Copyright CERN,for the benefit of the ATLAS Collaboration.Article funded by SCOAP3.https://doi.org/10.1007/JHEP10(2024)130JHEP10(2024)130Contents1 Introduction 12 The ATLAS detector 33 Data and simulated event samples 44 Object and event selection 54.1 Object reconstruction 54.2 Event selection 85 Analysis strategy 86 Signal and background modelling 106.1 Signal model 106.2 Background model 117 Systematic uncertainties 137.1 Experimental uncertainties 137.2 Theoretical…
has type: Article
is shown at: 10.14288/1.0447125
language: eng
peer review status: Reviewed
provider: Vancouver : University of British Columbia Library
publisher: Springer Berlin Heidelberg
publisher DOI: 10.1007/JHEP10(2024)130
rights: Attribution 4.0 International (CC BY 4.0)
rights URI: http://creativecommons.org/licenses/by/4.0/
scholar level: Faculty
subject: Hadron-Hadron Scattering
subject: Particle and Resonance Production
type: Text
identifier URI: http://hdl.handle.net/2429/89506