Off-campus WSU users: To download campus access dissertations, please use the following link to log into our proxy server with your WSU access ID and password, then click the "Off-campus Download" button below.

Non-WSU users: Please talk to your librarian about requesting this dissertation through interlibrary loan.

Access Type

WSU Access

Date of Award

January 2020

Degree Type


Degree Name



Physics and Astronomy

First Advisor

Robert F. Harr


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.

Off-campus Download