Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV
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Sirunyan2018_Article_SearchForThird-generationScala.pdf
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Author(s)
CMS Collaboration
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Azzolini, Virginia
Barbieri, Richard Alexander
Baty, Austin Alan
Bauer, Gerry P
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Date Issued
September 2018
Journal
European Physical Journal C: Particles and Fields
Publisher
Springer Berlin Heidelberg
Citation
Sirunyan, A. M. et al. “Search for Third-Generation Scalar Leptoquarks Decaying to a Top Quark and a τ Lepton at √s = 13 TeV.” The European Physical Journal C 78, 9 (September 2018): 707 © 2018 CERN for the benefit of the CMS collaboration
Version
Final published version
Abstract
A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a τ lepton, is presented. The search considers final states with an electron or a muon, one or two τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–proton collisions at √s = 13 TeV with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.9fb⁻¹. No evidence for pair production of LQs is found. Assuming a branching fraction of unity for the decay LQ→tτ, upper limits on the production cross section are set as a function of LQ mass, excluding masses below 900GeV at 95% confidence level. These results provide the most stringent limits to date on the production of scalar LQs that decay to a top quark and a τ lepton.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-018-6143-z
