Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using 4.7 fb−1 of s√=7 TeV proton-proton collision data

Barton, Adam and Borissov, Guennadi and Bouhova-Thacker, Eva and Chilingarov, Alexandre and Davidson, Ruth and de Mora, Lee and Dearnaley, William and Fox, Harald and Henderson, Robert and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin and Love, Peter and Maddocks, Harvey and Smizanska, Maria and Walder, James (2013) Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using 4.7  fb−1 of s√=7  TeV proton-proton collision data. Physical Review D, 87 (1). ISSN 1550-7998

[img]
Preview
PDF (PhysRevD.87.012008)
PhysRevD.87.012008.pdf - Published Version
Available under License Creative Commons Attribution.

Download (2MB)

Abstract

A search for squarks and gluinos in final states containing jets, missing transverse momentum and no high-pT electrons or muons is presented. The data represent the complete sample recorded in 2011 by the ATLAS experiment in 7 TeV proton-proton collisions at the Large Hadron Collider, with a total integrated luminosity of 4.7  fb−1. No excess above the Standard Model background expectation is observed. Gluino masses below 860 GeV and squark masses below 1320 GeV are excluded at the 95% confidence level in simplified models containing only squarks of the first two generations, a gluino octet and a massless neutralino, for squark or gluino masses below 2 TeV, respectively. Squarks and gluinos with equal masses below 1410 GeV are excluded. In minimal supergravity/constrained minimal supersymmetric Standard Model models with tanβ=10, A0=0 and μ>0, squarks and gluinos of equal mass are excluded for masses below 1360 GeV. Constraints are also placed on the parameter space of supersymmetric models with compressed spectra. These limits considerably extend the region of supersymmetric parameter space excluded by previous measurements with the ATLAS detector.

Item Type: Journal Article
Journal or Publication Title: Physical Review D
Additional Information: Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2013 CERN, for the ATLAS Collaboration
Departments: Faculty of Science and Technology > Physics
ID Code: 67956
Deposited By: ep_importer_pure
Deposited On: 10 Dec 2013 15:01
Refereed?: Yes
Published?: Published
Last Modified: 17 Feb 2020 02:06
URI: https://eprints.lancs.ac.uk/id/eprint/67956

Actions (login required)

View Item View Item