Aad, G;
Abbott, B;
Abdallah, J;
Abdinov, O;
Aben, R;
Abolins, M;
AbouZeid, OS;
... Zwalinski, L; + view all
(2016)
Search for direct top squark pair production in final states with two tau leptons in pp collisions at root s=8 TeV with the ATLAS detector.
European Physical Journal C
, 76
(81)
10.1140/epjc/s10052-016-3897-z.
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Abstract
A search for direct pair production of the supersymmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb −1−1 of proton–proton collision data at s√=8 TeVs=8 TeV . The data were collected by the ATLAS experiment at the LHC in 2012. Top squark candidates are searched for in events with either two hadronically decaying tau leptons, one hadronically decaying tau and one light lepton, or two light leptons. No significant excess over the Standard Model expectation is found. Exclusion limits at 95 %95 % confidence level are set as a function of the top squark and scalar tau masses. Depending on the scalar tau mass, ranging from the 87 GeV87 GeV LEP limit to the top squark mass, lower limits between 490 and 650 GeV650 GeV are placed on the top squark mass within the model considered.
| Type: | Article |
|---|---|
| Title: | Search for direct top squark pair production in final states with two tau leptons in pp collisions at root s=8 TeV with the ATLAS detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-016-3897-z |
| Publisher version: | http://doi.org/10.1140/epjc/s10052-016-3897-z |
| Language: | English |
| Additional information: | Copyright © 2017 CERN for the benefit of the ATLAS collaboration. This open access article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecomm ons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP. The final publication is available at Springer via http://doi.org/10.1140/epjc/s10052-016-3897-z |
| Keywords: | Science & Technology, Physical Sciences, Physics, Particles & Fields, Physics, Dynamical Supersymmetry Breaking, Of-mass Energies, Hadron Colliders, E(+)e(-) Collisions, Symmetry-breaking, Supergauge Transformations, Scalar Leptons, Cross-section, Model, Particle |
| 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-pp.ucl.ac.uk/id/eprint/1478653 |
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