Probing Effective Field Theory Models Using Associated Top Quark Production in Multiple Lepton Final States at 13 TeV

Doctoral Dissertation


Events containing one or more top quarks produced with additional prompt leptons are used to search for new physics within the framework of an effective field theory (EFT). The data correspond to an integrated luminosity of 41.5 fb^-1 of proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC, collected by the CMS experiment in 2017. Limits are placed on 16 dimension-six operators by performing a simultaneous fit to the data of the corresponding Wilson Coefficients (WCs) that parameterize the effects of the EFT operators. Two standard deviation confidence intervals for the WCs are extracted; the standard model expectations for the WC values are within these intervals for all WCs probed.


Attribute NameValues
Author Andrew Wightman
Contributor Kevin Lannon, Research Director
Contributor Mike Hildreth, Committee Member
Contributor Adam Martin, Committee Member
Contributor Dinshaw Balsara, Committee Member
Degree Level Doctoral Dissertation
Degree Discipline Physics
Degree Name Doctor of Philosophy
Banner Code

Defense Date
  • 2021-07-02

Submission Date 2021-07-13
Record Visibility Public
Content License
  • All rights reserved

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