Aaboud, M;
Aad, G;
Abbott, B;
Abdinov, O;
Abeloos, B;
Abidi, SH;
AbouZeid, OS;
... Zwalinski, L; + view all
(2017)
Search for super symmetry inevents with b-tagged jets and missing transverse momentum in pp collisions at root s=13 TeV with the ATLAS detector.
Journal of High Energy Physics
, 2017
, Article 195. 10.1007/JHEP11(2017)195.
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Abstract
A search for the supersymmetric partners of the Standard Model bottom and top quarks is presented. The search uses 36.1 fb−1 of pp collision data at s√=13s=13 TeV collected by the ATLAS experiment at the Large Hadron Collider. Direct production of pairs of bottom and top squarks ( b¯¯1b¯1 and t¯1t¯1 ) is searched for in final states with b-tagged jets and missing transverse momentum. Distinctive selections are defined with either no charged leptons (electrons or muons) in the final state, or one charged lepton. The zero-lepton selection targets models in which the b¯¯1b¯1 is the lightest squark and decays via b¯¯1→bχ¯¯¯01b¯1→bχ¯10 , where χ¯¯¯01χ¯10 is the lightest neutralino. The one-lepton final state targets models where bottom or top squarks are produced and can decay into multiple channels, b¯¯1→bχ¯¯¯01b¯1→bχ¯10 and b¯¯1→tχ¯¯¯±1b¯1→tχ¯1± , or t¯1→tχ¯¯¯01t¯1→tχ¯10 and t¯1→bχ¯¯¯±1t¯1→bχ¯1± , where χ¯¯¯±1χ¯1± is the lightest chargino and the mass difference mχ¯¯¯¯±1−mχ¯¯¯¯01mχ¯1±−mχ¯10 is set to 1 GeV. No excess above the expected Standard Model background is observed. Exclusion limits at 95% confidence level on the mass of third-generation squarks are derived in various supersymmetry-inspired simplified models.
| Type: | Article |
|---|---|
| Title: | Search for super symmetry inevents with b-tagged jets and missing transverse momentum in pp collisions at root s=13 TeV with the ATLAS detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/JHEP11(2017)195 |
| Publisher version: | http://doi.org/10.1007/JHEP11(2017)195 |
| Additional information: | Open Access Copyright CERN,for the benefit of the ATLAS Collaboration. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. |
| Keywords: | Hadron-Hadron scattering (experiments) |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1576072 |
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