Search for physics beyond the standard model in events with two leptons of same sign, missing transverse momentum, and jets in proton-proton collisions at sqrt(s) = 13 TeV

CMS;Bakhshiansohi, Hamed;Bondu, Olivier;Brochet, Sébastien;Wertz, Sébastien;et.al.
(2017) European Physical Journal C. Particles and Fields — Vol. C77, p. 578 (2017)

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Authors
  • CMSUCLouvain
    Author
  • Bakhshiansohi, HamedUCLouvain
    Author
  • Bondu, OlivierUCLouvain
    Author
  • Brochet, SébastienUCLouvain
    Author
  • Bruno, GiacomoUCLouvain
    Author
  • Caudron, AdrienUCLouvain
    Author
  • de Visscher, SimonUCLouvain
    Author
  • Delaere, Christopheorcid-logoUCLouvain
    Author
  • Delcourt, MartinUCLouvain
    Author
  • François, BrieucUCLouvain
    Author
  • Giammanco, Andreaorcid-logoUCLouvain
    Author
  • Jafari, AbidehUCLouvain
    Author
  • Komm, MatthiasUCLouvain
    Author
  • Krintiras, GeorgiosUCLouvain
    Author
  • Lemaitre, VincentUCLouvain
    Author
  • Magitteri, AlessioUCLouvain
    Author
  • Mertens, AlexandreUCLouvain
    Author
  • Musich, MarcoUCLouvain
    Author
  • Piotrzkowski, KrzysztofUCLouvain
    Author
  • Quertenmont, LoïcUCLouvain
    Author
  • Vidal Maroño, MiguelUCLouvain
    Author
  • Wertz, Sébastienorcid-logoUCLouvain
    Author
  • et. al.
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Abstract
A data sample of events from proton-proton collisions with two isolated same-sign leptons, missing transverse momentum, and jets is studied in a search for signatures of new physics phenomena by the CMS Collaboration at the LHC. The data correspond to an integrated luminosity of 35.9 inverse femtobarns, and a center-of-mass energy of 13 TeV. The properties of the events are consistent with expectations from standard model processes, and no excess yield is observed. Exclusion limits at 95% confidence level are set on cross sections for the pair production of gluinos, squarks, and same-sign top quarks, as well as top-quark associated production of a heavy scalar or pseudoscalar boson decaying to top quarks, and on the standard model production of events with four top quarks. The observed lower mass limits are as high as 1500 GeV for gluinos, 830 GeV for bottom squarks. The excluded mass range for heavy (pseudo)scalar bosons is 350-360 (350-410) GeV. Additionally, model-independent limits in several topological regions are provided, allowing for further interpretations of the results.
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CMS, Bakhshiansohi, H., Bondu, O., Brochet, S., Bruno, G., Caudron, A., de Visscher, S., Delaere, C., Delcourt, M., François, B., Giammanco, A., Jafari, A., Komm, M., Krintiras, G., Lemaitre, V., Magitteri, A., Mertens, A., Musich, M., Piotrzkowski, K., et al. (2017). Search for physics beyond the standard model in events with two leptons of same sign, missing transverse momentum, and jets in proton-proton collisions at sqrt(s) = 13 TeV. European Physical Journal C. Particles and Fields, C77, 578. https://doi.org/10.1140/epjc/s10052-017-5079-z (Original work published 2017)