Higher Order Studies of Polarization Effects in W±Z Production at the LHC With Sherpa

Research output: Types of thesisBachelor thesis

Contributors

  • Johannes Nikolas Liebig - , TUD Dresden University of Technology (Author)

Abstract

Event generators are an important connector between experimental and theoretical particle physics. It is crucial that they can simulate every particle interaction described by the Standard Model of particle physics and beyond. In the newest beta version of Sherpa 3.0.0, a fully-multi- purpose hadronic event generator, the polarization states of intermediate vector bosons can be simulated. The matrix element generator MadGraph, a multi-purpose parton level generator, is also able to simulate these polarization states, so the results for the W±Z -production can be compared between both simulation programs. Another way to verify that Sherpa can simulate the effects of vector boson polarization, investigating theoretical peculiarities like the radiation amplitude zero effect, where the differential cross-section is equal to zero for a specific observable, is reasonable. In many models discussing physics beyond the Standard Model, values of coupling parameters are tweaked which can impact polarization effects. Thus, if the simulation results differ from Standard Model expectations, the choice which of these model is correct can be limited.

Details

Original languageEnglish
Supervisors/Advisors
  • Siegert, Frank, Supervisor
Defense Date (Date of certificate)19 Mar 2024
Publication statusPublished - 12 Feb 2024
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Keywords