Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb−1 of √s=13 TeV pp collision data with the ATLAS detector

A search for strongly produced supersymmetric particles using signatures involving multiple energetic jets and either two isolated same-sign leptons (e or μ), or at least three isolated leptons, is presented. The analysis relies on the identification of b-jets and high missing transverse momentum to...

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Hauptverfasser: Aaboud, Morad (VerfasserIn) , Anders, Christoph (VerfasserIn) , Andrei, George Victor (VerfasserIn) , Antel, Claire (VerfasserIn) , Baas, Alessandra Edda (VerfasserIn) , Bolz, Arthur (VerfasserIn) , Brandt, Oleg (VerfasserIn) , Djuvsland, Julia Isabell (VerfasserIn) , Dunford, Monica (VerfasserIn) , Franchino, Silvia (VerfasserIn) , Geisler, Manuel Patrice (VerfasserIn) , Giulini, Maddalena (VerfasserIn) , Hanke, Paul (VerfasserIn) , Jongmanns, Jan (VerfasserIn) , Kluge, Eike-Erik (VerfasserIn) , Kolb, Mathis (VerfasserIn) , Kugel, Andreas (VerfasserIn) , Lisovyi, Mykhailo (VerfasserIn) , Meier, Karlheinz (VerfasserIn) , Meyer zu Theenhausen, Hanno (VerfasserIn) , Narrias Villar, Daniel Isaac (VerfasserIn) , S̜ahinsoy, Merve (VerfasserIn) , Schöning, André (VerfasserIn) , Schultz-Coulon, Hans-Christian (VerfasserIn) , Sosa Corral, David E. (VerfasserIn) , Spieker, Thomas (VerfasserIn) , Stamen, Rainer (VerfasserIn) , Starovoitov, Pavel (VerfasserIn) , Suchek, Stanislav (VerfasserIn) , Wessels, Martin (VerfasserIn)
Körperschaft: ATLAS Collaboration (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 19 September 2017
In: Journal of high energy physics
Year: 2017, Heft: 9, Pages: 1-45
ISSN:1029-8479
DOI:10.1007/JHEP09(2017)084
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP09(2017)084
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Verfasserangaben:The ATLAS collaboration*
Beschreibung
Zusammenfassung:A search for strongly produced supersymmetric particles using signatures involving multiple energetic jets and either two isolated same-sign leptons (e or μ), or at least three isolated leptons, is presented. The analysis relies on the identification of b-jets and high missing transverse momentum to achieve good sensitivity. A data sample of proton-proton collisions at √s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to a total integrated luminosity of 36.1 fb−1, is used for the search. No significant excess over the Standard Model prediction is observed. The results are interpreted in several simplified supersymmetric models featuring R-parity conservation or R-parity violation, extending the exclusion limits from previous searches. In models considering gluino pair production, gluino masses are excluded up to 1.87 TeV at 95% confidence level. When bottom squarks are pair-produced and decay to a chargino and a top quark, models with bottom squark masses below 700 GeV and light neutralinos are excluded at 95% confidence level. In addition, model-independent limits are set on a possible contribution of new phenomena to the signal region yields.
Beschreibung:*ATLAS collaboration: M. Aaboud, C.F. Anders, V. Andrei, C. Antel, A.E. Baas, A.E. Bolz, O. Brandt, J.I. Djuvsland, M. Dunford, S. Franchino, M.P. Geisler, M. Giulini, P. Hanke, J. Jongmanns, E.-E. Kluge, M. Kolb, A. Kugel, M. Lisovyi, K. Meier, H. Meyer zu Theenhausen, D.I. Narrias Villar, M. Sahinsoy, A. Schoening, H.-C. Schultz-Coulon, D. Sosa, T.M. Spieker, R. Stamen, P. Starovoitov, S. Suchek, M. Wessels [und sehr viele weitere Personen]
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Erratum erschienen in: Journal of High Energy Physics , Volume 2019, Article number: 121 (2019); 10.1007/JHEP09(2017)084
Gesehen am 28.01.2022
Beschreibung:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP09(2017)084