Top quark physics in the standard model effective field theory

Moore, Liam Ronald (2016) Top quark physics in the standard model effective field theory. PhD thesis, University of Glasgow.

Abstract

We explore some applications of the Standard Model (SM) Effective Field Theory (EFT) as a tool with which to describe generic nonresonant new physics (NP) at hadron colliders. A global fit of the dimension-six Wilson Coefficients relevant to top quark production is presented, utilizing diverse experimental datasets from both the Large Hadron Collider (LHC) Runs I and II and the TeVatron, with current results in good agreement with the SM. Machinery is developed to systematically treat redundancies between higher-dimensional operators in the automated model-building and phenomenology toolkit FeynRules, and a general SMEFT model implementation for event generators detailed. We then investigate the importance of high momentum transfer final states in top pair production to the EFT fit, taking advantage of boosted reconstruction techniques. We find sensitivity is typically driven by fully resolved analyses in several benchmark scenarios for total integrated luminosity and experimental systematic uncertainties.

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Keywords: Top, quark, standard, model, effective, field, theory, phenomenology.
• Subjects: Q Science > QC Physics
• Colleges/Schools: College of Science and Engineering > School of Physics and Astronomy
• Funder's Name: Science & Technologies Facilities Council (STFC), Science & Technologies Facilities Council (STFC)
• Supervisor's Name: Miller, Dr. David J.
• Date of Award: 2016
• Depositing User: Unnamed user with email [e-mail]
• Unique ID: glathesis:2016-7841
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 03 Feb 2017 12:16
• Last Modified: 10 Mar 2017 13:02
• URI: https://theses.gla.ac.uk/id/eprint/7841