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Access Type
WSU Access
Date of Award
January 2020
Degree Type
Dissertation
Degree Name
Ph.D.
Department
Physics and Astronomy
First Advisor
Robert F. Harr
Abstract
A study of techniques for improving limits placed on anomalous trilinear couplings of electroweak
gauge bosons is presented. Electroweak gauge bosons couple to one another as well as to fermions. Deviations of these couplings from their standard model values would be a sign of new physics. Parameters
that affect the couplings of the gauge bosons to each other also affect their helicity, which in turn may
be measured from their decay products. Angles between the decay planes of the gauge bosons, as well as
between their decay products, are measured. The analysis uses 35.9 fb −1 of proton-proton collision data
from the LHC taken with the CMS detector. Building on a prior analysis that measured the fiducial cross
section of pp → W W/W Z → lνjj, we show that angular variables can improve limits on anomalous
couplings even further.
Recommended Citation
Siehl, Kevin, "Search For Anomalous Trilinear Couplings Of Electroweak Gauge Bosons Using Angular Variables At √s = 13 Tev At Cms" (2020). Wayne State University Dissertations. 2399.
https://digitalcommons.wayne.edu/oa_dissertations/2399