Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/104869
Title: Search for squarks and gluinos in final states with jets and missing transverse momentum using 139 fb−1 of p s =13TeV pp collision data with the ATLAS detector
Authors: Fiolhais, M. C. N.
Gonçalo, R.
Veloso, F.
Wolters, H.
ATLAS Collaboration
Keywords: Hadron-Hadron scattering (experiments); Supersymmetry
Issue Date: Feb-2021
Publisher: Springer Nature
Serial title, monograph or event: Journal of High Energy Physics
Volume: 2021
Issue: 2
Abstract: A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this search were recorded by the ATLAS experiment in proton-proton collisions at a centre-of-mass energy of p s = 13TeV during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb−1. The results are interpreted in the context of various R-parity-conserving models where squarks and gluinos are produced in pairs or in association and a neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 2.30TeV for a simplified model containing only a gluino and the lightest neutralino, assuming the latter is massless. For a simplified model involving the strong production of mass-degenerate first- and second-generation squarks, squark masses below 1.85TeV are excluded if the lightest neutralino is massless. These limits extend substantially beyond the region of supersymmetric parameter space excluded previously by similar searches with the ATLAS detector.
URI: https://hdl.handle.net/10316/104869
DOI: 10.1007/JHEP02(2021)143
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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