  Signs of new physics are probed in the context of an Effective Field Theory
using events containing one or more top quarks in association with additional
leptons. Data consisting of proton-proton collisions at a center-of-mass energy
of $\sqrt{s}=$13 TeV was collected at the LHC by the CMS experiment in 2017. We
apply a novel technique to parameterize 16 dimension-six EFT operators in terms
of the respective Wilson coefficients (WCs). A simultaneous fit is performed to
the data in order to extract the two standard deviation confidence intervals
(CIs) of the 16 WCs. The Standard Model value of zero is completely contained
in most CIs, and is not excluded by a statistically significant amount in any
interval.
