Measurements of neutral multi-boson production in proton-proton collisions at √s = 13 TeV with the ATLAS detector

Lewis, Daniel James (2022). Measurements of neutral multi-boson production in proton-proton collisions at √s = 13 TeV with the ATLAS detector. University of Birmingham. Ph.D.

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Abstract

Cross-section measurements for the production of a \(Z\) boson in association with one or two photons are performed using proton-proton collisions at a centre-of-mass energy of 13 TeV. The data used correspond to an integrated luminosity of 139 fb\(^{-1}\) recorded by the ATLAS experiment. The measurements are performed using the leptonic decay channels of the \(Z\), and in a phase space region where the dominant photon production is from the incoming proton constituents, rather than off the leptons from the \(Z\) decay. The integrated fiducial cross-sections are measured to a precision of 3% and 12% for \(Z\)γ and \(Z\)γγ respectively, making these the most precise measurements of these processes to date. The cross-sections are also measured differentially and are compared to predictions from state-of-the-art theoretical calculations and Monte Carlo generators.

Type of Work: Thesis (Doctorates > Ph.D.)
Award Type: Doctorates > Ph.D.
Supervisor(s):
Supervisor(s)EmailORCID
Charlton, DaveUNSPECIFIEDUNSPECIFIED
Hawkes, ChrisUNSPECIFIEDUNSPECIFIED
Licence: All rights reserved
College/Faculty: Colleges (2008 onwards) > College of Engineering & Physical Sciences
School or Department: School of Physics and Astronomy
Funders: Science and Technology Facilities Council
Subjects: Q Science > QC Physics
URI: http://etheses.bham.ac.uk/id/eprint/12516

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