Determining the basic properties of a new particle detector concept for the T2K experiment and implementing the T2K calculation for a three-neutrino global fit with GAMBIT
File(s)
Author(s)
Shorrock, Wilf
Type
Thesis
Abstract
Neutrino oscillations are of significant interest to the physics community as studying them could reveal much about the origins of the Universe. Tokai-to-Kamioka (T2K) is a long baseline neutrino oscillation experiment dedicated to measuring the neutrino oscillation parameters. A proposal to upgrade the near-detector of T2K to improve its systematic uncertainties has been made and research is ongoing to develop and build these detectors for installation in 2022. The work presented herein gives the methods and results of the analysis regarding the new detector design for the near-detector upgrade, the SuperFGD, and its multiple beam tests. Using the data from these beam tests, this thesis shows how some of the basic properties of the detector were measured. For example, the time resolution of the detector, measured as 1.14 $\pm$ 0.06~ns, which is in agreement with the predicted result from combining the time resolution of the readout electronics and the scintillator material. The results in this thesis regarding the SuperFGD Prototype have been an invaluable resource for the development and simulation of the SuperFGD detector to be installed in T2K. Also detailed in this work is the progress of a three-neutrino global fit implementation within the global fitting software GAMBIT. GAMBIT aims to improve upon previous neutrino global fits by sourcing information from more reliable resources than theses and presentations. The results shown here demonstrate how using certain internal information from T2K can help improve global fits, with the hope that T2K can publicly release this information in the future.
Version
Open Access
Date Issued
2021-08
Date Awarded
2022-01
Copyright Statement
Creative Commons Attribution NonCommercial NoDerivatives Licence
License URL
Advisor
Uchida, Yoshiyuki
Sponsor
Science and Technology Facilities Council (Great Britain)
Publisher Department
Physics
Publisher Institution
Imperial College London
Qualification Level
Doctoral
Qualification Name
Doctor of Philosophy (PhD)