期刊
PHYSICS LETTERS B
卷 731, 期 -, 页码 7-12出版社
ELSEVIER
DOI: 10.1016/j.physletb.2014.02.016
关键词
Supersymmetry breaking; Gauge mediation
资金
- Theory-LHC France-initiative of the CNRS/IN2P3
- French ANR [12 JS05 002 01 BATS@LHC]
- Belgian Federal Science Policy Office through the Interuniversity Attraction Pole [P7/37]
- Strategic Research Program High Energy Physics
- Research Council of the Vrije Universiteit Brussel
- FWO-Vlaanderen aspirant fellowship
- ERC [291377]
- IISN-Belgium [4.4511.06, 4.4505.86, 4.4514.08]
- Communaute Francaise de Belgique through the ARC program
- Mandat d'Impulsion Scientifique of the F.R.S.-FNRS
- Swedish Research Council (VR) [637-2013-475]
- Durham International Junior Research Fellowship
We investigate multilepton LHC signals arising from electroweak processes involving sleptons. We consider the framework of general gauge mediated supersymmetry breaking, focusing on models where the low mass region of the superpartner spectrum consists of the three generations of charged sleptons and the nearly massless gravitino. We demonstrate how such models can provide an explanation for the anomalous four lepton events recently observed by the CMS Collaboration, while satisfying other existing experimental constraints. The best fit to the CMS data is obtained for a selectron/smuon mass of around 145 GeV and a stau mass of around 90 GeV. These models also give rise to final states with more than four leptons, offering alternative channels in which they can be probed and we estimate the corresponding production rates at the LHC. (c) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license
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