νμ CC1π+ Events Produced in the T2K Beam at Super-Kamiokande
department or school: Science, Faculty of
department or school: Physics and Astronomy, Department of
data provider: DSpace
degree campus: UBCV
creator: Berkman, Sophie Sattell
issued: 2018-04-16T18:16:26Z
issued: 2018
related degree: Doctor of Philosophy - PhD
degree grantor: University of British Columbia
description: T2K is an experiment designed to make precision measurements of neutrino oscillation parameters. Neutrinos produced in the Japan Proton Accelerator Complex are sent 295 km across Japan to the far detector Super-Kamiokande. Charged current quasi-elastic neutrino interactions in which the neutrino produces a lepton and a nucleon are dominant at T2K beam energies, and these are the signal events used in the measurement of muon disappearance parameters θ₂₃ and ∆m²₃₂. The second most dominant neutrino interaction mode at T2K is the charged current single pion interaction (CC1π+) in which both a lepton and a charged pion are produced in addition to the nucleon. This thesis presents a method to identify charged pions and CC1π+ neutrino interactions at Super-Kamiokande. This is used to develop a selection method for muon neutrino CC1π+ interactions at Super-Kamiokande in the T2K beam. There are 93 events expected based on Monte Carlo predictions which would increase the number of muon neutrino events in the T2K analysis by 40%. Methods developed to evaluate the systematic errors associated with explicitly selecting charged pions at Super-Kamiokande for the first time are also discussed.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/65405
note: νµ CC1pi+ Events Produced in the T2K Beam atSuper-KamiokandebySophie Sattell BerkmanB. A., Reed College, 2010a thesis submitted in partial fulfillmentof the requirements for the degree ofDoctor of Philosophyinthe faculty of graduate and postdoctoralstudies(Physics)The University of British Columbia(Vancouver)April 2018c© Sophie Sattell Berkman, 2018AbstractT2K is an experiment designed to make precision measurements of neu-trino oscillation parameters. Neutrinos produced in the Japan Proton Ac-celerator Complex are sent 295 km across Japan to the far detector Super-Kamiokande. Charged current quasi-elastic neutrino interactions in whichthe neutrino produces a lepton and a nucleon are dominant at T2K beamenergies, and these are the signal events used in the measurement of muondisappearance parameters θ23 and ∆m232. The second most dominant neu-trino interaction mode at T2K is the charged current single pion interaction(CC1pi+) in which both a lepton and a charged pion are produced in ad-dition to the nucleon. This thesis presents a method to identify chargedpions and CC1pi+ neutrino interactions at Super-Kamiokande. This is usedto develop a selection method for muon neutrino CC1pi+ interactions atSuper-Kamiokande in the T2K beam. There are 93 events expected basedon Monte Carlo predictions which would increase the number of muon neu-trino events in the T2K analysis by 40%. Methods developed to evaluatethe systematic errors associated with explicitly selecting charged pions atSuper-Kamiokande for the first time are also discussed.iiLay AbstractAt the beginning of the universe equal parts matter and anti-matter werecreated, but if this were the full story nothing in the universe would existtoday. It is possible that the pervasive tiny neutral particles called neutrinoscould contribute to this discrepancy if neutrinos and anti-neutrinos act dif-ferently. The T2K experiment hopes to measure the extent that neutrinosand anti-neutrinos are different. To do this it sends a …
has type: Thesis/Dissertation
date issued: 2018-05
is shown at: 10.14288/1.0365713
language: eng
degree discipline: Physics
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/65405