# Search for supersymmetry in events with a τ lepton pair and missing transverse momentum in proton-proton collisions at √ s = 13 TeV

CMS Collaboration; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Flechl, M.; Frühwirth, R.; Ghete, V. M.; Hrubec, J.; Jeitler, M.; Krammer, N.; Krätschmer, I.; Liko, D.; Madlener, T.; ... mehr

Abstract:
A search for the electroweak production of supersymmetric particles in protonproton collisions at a center-of-mass energy of 13TeV is presented in nal states with a $\tau$ lepton pair. Both hadronic and leptonic decay modes are considered for the $\tau$ leptons. Scenarios involving the direct pair production of $\tau$ sleptons, or their indirect production via the decays of charginos and neutralinos, are investigated. The data correspond to an integrated luminosity of 35.9 fb$^{-1}$ collected with the CMS detector in 2016. The observed number of events is consistent with the standard model background expectation. The results are interpreted as upper limits on the cross section for $\tau$ slepton pair production in different scenarios. The strongest limits are observed in the scenario of a purely left-handed low mass $\tau$ slepton decaying to a nearly massless neutralino. Exclusion limits are also set in the context of simplied models of chargino-neutralino and chargino pair production
with decays to $\tau$ leptons, and range up to 710 and 630 GeV, respectively.

 Zugehörige Institution(en) am KIT Institut für Experimentelle Teilchenphysik (ETP) Publikationstyp Zeitschriftenaufsatz Jahr 2018 Sprache Englisch Identifikator ISSN: 1029-8479 urn:nbn:de:swb:90-886504 KITopen-ID: 1000088650 Erschienen in Journal of high energy physics Band 11 Seiten 151 Bemerkung zur Veröffentlichung Gefördert durch SCOAP3 Schlagworte Hadron-Hadron scattering (experiments), Supersymmetry Nachgewiesen in Scopus
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