Bailey, Lucy;
(2025)
Search for the electric dipole moment of the muon at the Fermilab Muon g-2 Experiment.
Doctoral thesis (Ph.D), UCL (University College London).
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Abstract
Due to the experimental setup at the Fermilab Muon g-2 experiment, a measurement of the electric dipole moment (EDM) is facilitated alongside the main measurement of the anomalous magnetic moment. The search for the muon EDM, which uses the straw tracking detector, is presented here. EDMs are vanishingly small in the Standard Model and the detection of any significant EDM would be new physics outright and provide a source of CP-violation. Firstly, the Standard Model picture of magnetic moments and EDMs are explained to motivate the experiment and EDM measurement. Experimental methods, setup and recent improvements are then set out, followed by the EDM analysis of the Run-2/3 dataset. Sources of systematic uncertainty are described and characterised and several cross-checks are performed. The data is currently blinded but, given a final measurement of exactly zero muon EDM, d_µ=0, the best-case limit would then be |d_µ|<0.33×10^(-19) e⋅cm at 95% confidence level.
| Type: | Thesis (Doctoral) |
|---|---|
| Qualification: | Ph.D |
| Title: | Search for the electric dipole moment of the muon at the Fermilab Muon g-2 Experiment |
| Open access status: | An open access version is available from UCL Discovery |
| Language: | English |
| Additional information: | Copyright © The Author 2025. Original content in this thesis is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Licence (https://creativecommons.org/licenses/by-nc/4.0/). Any third-party copyright material present remains the property of its respective owner(s) and is licensed under its existing terms. Access may initially be restricted at the author’s request. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10210128 |
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