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Long-Lived Scintillation Light From Cosmic Ray Muons In A Lartpc, Bradley Goff
Long-Lived Scintillation Light From Cosmic Ray Muons In A Lartpc, Bradley Goff
Undergraduate Honors Thesis Projects
Each Photomultiplier Tube (PMT) in the MicroBooNE detector has an excessive single photoelectron (SPE) rate of 250 kHz, significantly larger than the PMT’s intrinsic SPE rate of 5 kHz. It is believed that this excess is due to late light from cosmic ray muons. The SPE rate was modeled as a single exponential decay with a constant background. The lifetime of the late light was measured to be 340 ± 20 s. The late light is responsible for a SPE rate of 42.8 ± 0.7 kHz per PMT. The constant background, which is independent of muons, produces a SPE rate …
Using Precise Measurements Of Muon G-2 To Constrain New Physics, Evan M. Heintz
Using Precise Measurements Of Muon G-2 To Constrain New Physics, Evan M. Heintz
Undergraduate Honors Thesis Projects
We study the contributions to the anomalous magnetic moment of the muon from theories beyond the Standard Model, specifically supersymmetry. Results found at Brookhaven National Laboratory in 2001 during the E821 experiment indicate that current theories may not fully account for all of the interactions between the muon and fundamental gauge bosons. We re-derive Dirac's famous result of g=2. We then reproduce the one loop contributions from electroweak theory to the anomalous magnetic moment of the muon. We then use these calculations as a template for theories that go beyond the Standard Model. We show illustrative results for minimal supersymmetry …
Analysis Of The Energy Spectrum Of Michel Electrons In Microboone, Philip Griffith Kellogg
Analysis Of The Energy Spectrum Of Michel Electrons In Microboone, Philip Griffith Kellogg
Undergraduate Honors Thesis Projects
The MicroBooNE experiment at Fermilab was designed both to investigate results from anomalies seen in short-baseline experiments and to prototype technology for larger scale experiments. MicroBooNE hopes to investigate an excess of low-energy events seen in a preceding experiment, using improved detector resolution. The goal of this thesis was to perform a calibration of the MicroBooNE detector by determining the Michel electron energy spectrum inside the detector. Michel electrons result from the decay of muons, and have a very well understood energy spectrum. Muons from cosmic rays continually pass through the detector, roughly 1% of which will decay within the …