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This book is based on the author's work in the T2K long-baseline neutrino oscillation experiment, in which neutrinos are generated by a proton beam and are detected by near and far neutrino detectors. In order to achieve the precise measurement of the neutrino oscillation, an accurate understanding of the neutrino beam and the neutrino interaction is essential. Thus, the author measured the neutrino beam properties and the neutrino interaction cross sections using a near neutrino detector called INGRID and promoted a better understanding of them. Then, the author performed a neutrino oscillation analysis using the neutrino beam and neutrino interaction models verified by the INGRID measurements. As a result, some values of the neutrino CP phase are disfavored at the 90% confidence level. If the measurement precision is further improved, we may be able to discover the finite CP phase which involves the CP violation. Thus, this result is an important step towards the discovery of CP violation in the lepton sector, which may be the key to understanding the origin of the matter–antimatter asymmetry in the universe.

Nuclear Physics --- Physics --- Physical Sciences & Mathematics --- Neutrino interactions --- Neutrinos --- Experiments. --- Research. --- Neutret --- Collisions, Neutrino --- Interactions, Neutrino --- Neutrino collisions --- Neutrino reactions --- Reactions, Neutrino --- Leptons (Nuclear physics) --- Neutrons --- Nuclear reactions --- Particle acceleration. --- Particle Acceleration and Detection, Beam Physics. --- Measurement Science and Instrumentation. --- Particles (Nuclear physics) --- Acceleration (Mechanics) --- Nuclear physics --- Acceleration --- Physical measurements. --- Measurement   . --- Measuring --- Mensuration --- Mathematics --- Technology --- Metrology --- Physical measurements --- Measurements, Physical --- Mathematical physics --- Measurement

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"Topical issues, new series"

Neutrinos --- Neutrino interactions --- Solar neutrinos --- Neutrinos, Solar --- Solar radiation --- Collisions, Neutrino --- Interactions, Neutrino --- Neutrino collisions --- Neutrino reactions --- Reactions, Neutrino --- Nuclear reactions --- Physics --- Physics. --- Physique --- Zeitschrift --- Physik. --- Periodikum --- Zeitschriften --- Presse --- Fortlaufendes Sammelwerk --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Physic --- Physik --- #TS:WNAT --- #ANTIL9603 --- Périodiques --- EJPHYSI EPUB-ALPHA-P EPUB-PER-FT IOP-E --- Condensed Matter Physics --- General and Others --- Nuclear Physics --- Plasma Physics --- Zeitschrift. --- Natuurkunde --- Engineering --- Mathematical Sciences --- Electrical Engineering --- Electronics --- Mathematical Physics --- Physics - Periodicals --- Physics - periodicals --- Physique - Periodiques --- Physics - Congresses

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This thesis represents the first double differential measurement of quasi-elastic anti-neutrino scattering in the few GeV range--a region of substantial theoretical and experimental interest as it is the kinematic region where studies of charge-parity (CP) violation in the neutrino sector most require precise understanding of the differences between anti-neutrino and neutrino scatter. This dissertation also presents total antineutrino-scintillator quasi-elastic cross sections as a function of energy, which is then compared to measurements from previous experiments.  Next-generation neutrino oscillation experiments, such as DUNE and Hyper-Kamiokande, hope to measure CP violation in the lepton sector. In order to do this, they must dramatically reduce their current levels of uncertainty, particularly those due to neutrino-nucleus interaction models. As CP violation is a measure of the difference between the oscillation properties of neutrinos and antineutrinos, data about how the less-studied antineutrinos interact is especially valuable. The measurement described herewith determines the nuclear and instrumental effects that must be understood to undertake precision neutrino physics. As well as being useful to help reduce oscillation experiments' uncertainty, this data can also be used to study the prevalence of various correlation and final-state interaction effects within the nucleus. In addition to being a substantial scientific advance, this thesis also serves as an outstanding introduction to the field of experimental neutrino physics for future students.

Physics. --- Nuclear physics. --- Heavy ions. --- Hadrons. --- Elementary particles (Physics). --- Quantum field theory. --- Particle acceleration. --- Atomic structure. --- Molecular structure. --- Spectra. --- Atomic/Molecular Structure and Spectra. --- Elementary Particles, Quantum Field Theory. --- Nuclear Physics, Heavy Ions, Hadrons. --- Particle Acceleration and Detection, Beam Physics. --- Neutrino interactions --- Neutrino interactions. --- Antineutrinos. --- Experiments. --- Quantum theory. --- Particles (Nuclear physics) --- Acceleration (Mechanics) --- Nuclear physics --- Atomic nuclei --- Atoms, Nuclei of --- Nucleus of the atom --- Physics --- Quantum dynamics --- Quantum mechanics --- Quantum physics --- Mechanics --- Thermodynamics --- Acceleration --- Collisions, Neutrino --- Interactions, Neutrino --- Neutrino collisions --- Neutrino reactions --- Reactions, Neutrino --- Nuclear reactions --- Neutrinos --- Atomic structure  . --- Molecular structure . --- Ions --- Relativistic quantum field theory --- Field theory (Physics) --- Quantum theory --- Relativity (Physics) --- Elementary particles (Physics) --- High energy physics --- Nuclear particles --- Nucleons --- Structure, Molecular --- Chemical structure --- Structural bioinformatics --- Structure, Atomic --- Atomic theory