Search for electroweak production of charginos and neutralinos in multilepton final states in proton-proton collisions at s=13$$ \sqrt{s}=13 $$ TeV

By A. Sirunyan, A. Tumasyan, W. Adam, Federico Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Erö and 489 more. 2017

172 citations recorded by the source corpus.

A bstractResults are presented from a search for the direct electroweak production of charginos and neutralinos in signatures with either two or more leptons (electrons or muons) of the same electric charge, or with three or more leptons, which can include up to two hadronically decaying tau leptons. The results are based on a sample of proton-proton collision data collected at s=13$$ \sqrt{s}=13 $$ TeV, recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb−1. The observed event yields are consistent with the expectations based on the standard model. The results are interpreted in simplified models of supersymmetry describing various scenarios for the production and decay of charginos and neutralinos. Depending on the model parameters chosen, mass values between 180 GeV and 1150 GeV are excluded at 95% CL. These results significantly extend the parameter space probed for these particles in searches at the LHC. In addition, results are presented in a form suitable for alternative theoretical interpretations.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/0af0edc663fc5bff204a37d50d40a6842e9c421e

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In Astronomy and Astrophysics

1. Atlas Collaboration
2. Valentin Hirschi
3. P. Nason
4. E. Re
5. Juan Rojo
6. Thomas Gehrmann
7. M. Zaro
8. Ansgar Denner

In Nuclear and High Energy Physics

1. Gudrun Heinrich
2. Atlas Collaboration
3. Cms Collaboration
4. Ansgar Denner
5. Stefan Kallweit
6. Stefan Dittmaier
7. M. Grazzini
8. Juan Rojo

Citations in the corpus

• Search for electroweak production of supersymmetric states in scenarios with compressed mass spectra at √s = 13 TeV with the ATLAS detector (2017, methodology): “The innermost pixel detector layer, the insertable B-layer [50], was added for ffiffiffi s p ¼ 13 TeV data-taking to improve tracking performance.”
• Beyond the Standard Model Physics at the HL-LHC and HE-LHC (2018, methodology): “[93], to account for events with misidentified leptons from light flavour quarks, which are not included by DELPHES [93].”