Measuring charged current neutrino interactions in the electromagnetic calorimeters of the ND280 detector
Author(s)
Scott, Mark Andrew
Type
Thesis
Abstract
This thesis presents a study of neutrino interactions within the electromagnetic
calorimeters (ECals) of the Tokai-to-Kamioka (T2K) off -axis
near detector (ND280), using data collected from T2K Run II and
Run III.
Neutrino oscillation physics is a rapidly advancing field, with the
recent discovery of non-zero [Symbol appears here. To view, please open pdf attachment]13 allowing the possibility of measuring CP-violation
in the lepton sector. The current neutrino beam experiments
must make precise measurements of the oscillation parameters and to do
this require an improved understanding of neutrino interactions, which
can only come through better measurements of neutrino cross-sections.
This thesis describes the development of a neutrino event selection
using a boosted decision tree multi-variate analysis to separate interactions
within the ND280 ECals from entering backgrounds. This is
then used to provide a selection of neutrino event samples from each
ECal module, which are inputs to a X2 fit that is used to extract the
[Symbols appears here. To view, please open pdf attachment] charged current inclusive cross-section, which was found to be [Mathematical equation appears here. To view, please open pdf attachment].
calorimeters (ECals) of the Tokai-to-Kamioka (T2K) off -axis
near detector (ND280), using data collected from T2K Run II and
Run III.
Neutrino oscillation physics is a rapidly advancing field, with the
recent discovery of non-zero [Symbol appears here. To view, please open pdf attachment]13 allowing the possibility of measuring CP-violation
in the lepton sector. The current neutrino beam experiments
must make precise measurements of the oscillation parameters and to do
this require an improved understanding of neutrino interactions, which
can only come through better measurements of neutrino cross-sections.
This thesis describes the development of a neutrino event selection
using a boosted decision tree multi-variate analysis to separate interactions
within the ND280 ECals from entering backgrounds. This is
then used to provide a selection of neutrino event samples from each
ECal module, which are inputs to a X2 fit that is used to extract the
[Symbols appears here. To view, please open pdf attachment] charged current inclusive cross-section, which was found to be [Mathematical equation appears here. To view, please open pdf attachment].
Version
Open Access
Date Issued
2013-05
Date Awarded
2013-09
Copyright Statement
Attribution NoDerivatives 4.0 International Licence (CC BY-ND)
Advisor
Uchida, Yoshi
Publisher Department
Physics
Publisher Institution
Imperial College London
Qualification Level
Doctoral
Qualification Name
Doctor of Philosophy (PhD)