Sensitivities to a Light Scalar Particle Using Muon Decay, Kaon Decay, and Electron-Positron Annihilation

dc.contributor.authorLange, Nicholas
dc.contributor.supervisorPospelov, Maxim
dc.date.accessioned2015-12-21T21:58:14Z
dc.date.available2015-12-21T21:58:14Z
dc.date.copyright2015en_US
dc.date.issued2015-12-21
dc.degree.departmentDepartment of Physics and Astronomy
dc.degree.levelMaster of Science M.Sc.en_US
dc.description.abstractThere are several anomalies within the Standard Model of particle physics that may be explained by means of light new physics. These may be associated with muons, with the gyromagnetic ratio of the muon being different from theory at the level of 3.4σ, and with the 7σ muonic Hydrogen proton radius extraction. Previous, current, and new experiments may be able to place stringent limits on the existence of a new scalar force, with a coupling to leptons proportional to their mass. We investigate the sensitivity to the parameter space of the muon decay experiment Mu3e, the kaon decay experiments NA48/2 and NA62, and the experiments at asymmetric electron-positron colliders, BaBar, Belle, Belle2. Using Monte Carlo techniques to generate events for processes corresponding to each experiment, we find that these experiments could be sensitive to muonic couplings down to 10^−5, and over a wide mass range of 10 MeV − 3.5 GeV, fully covering the parameter space relevant for explanations of these anomalies. The possibility exists to later extend to masses up to 10 GeV.en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.urihttp://hdl.handle.net/1828/6971
dc.languageEnglisheng
dc.language.isoenen_US
dc.rightsAvailable to the World Wide Weben_US
dc.subjectparticle physicsen_US
dc.subjectparticle phenomenologyen_US
dc.subjectmuonen_US
dc.titleSensitivities to a Light Scalar Particle Using Muon Decay, Kaon Decay, and Electron-Positron Annihilationen_US
dc.typeThesisen_US

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