Search for heavy resonances in final states with four leptons and missing transverse momentum or jets in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1007/JHEP10(2024)130

paper

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

arXiv:2401.04742 · doi:10.1007/JHEP10(2024)130

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: $R \to S H$ and $A \to Z H$ , 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, $S \to invisible$ and $H \to Z Z$ . 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.

48 pages in total, author list starting page 31, 8 figures, 5 tables. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HDBS-2019-08/

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

Abstract

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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