The search for CP violation in neutrino oscillations at T2K

<p>T2K is a long-baseline neutrino oscillation experiment, designed to study the oscillation of a high-intensity muon neutrino beam produced by the J-PARC ac- celerator facility. Neutrinos are detected 295 km downstream of the production point at Super-Kamiokande, a 50 kt water Cherenkov detec...

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Main Author: Shah, RK
Format: Thesis
Language:English
Published: 2017
Subjects:
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author Shah, RK
author_facet Shah, RK
author_sort Shah, RK
collection OXFORD
description <p>T2K is a long-baseline neutrino oscillation experiment, designed to study the oscillation of a high-intensity muon neutrino beam produced by the J-PARC ac- celerator facility. Neutrinos are detected 295 km downstream of the production point at Super-Kamiokande, a 50 kt water Cherenkov detector capable of differ- entiating between muon neutrino and electron neutrino events. Two beam configurations are possible at T2K, each used to create neutrino beams composed of predominantly neutrinos or anti-neutrinos. Comparisons of the disappearance of muon neutrinos and the appearance of electron neutrinos in the neutrino and anti-neutrino beams are used to measure the neutrino oscillation parameters.</p> <p>Presented in this thesis are the results of many analyses designed to study various combinations of the Super-Kamiokande oscillation data sets. Analyses considering the antineutrino beam data sets found no substantial evidence for ν ̄e appearance in a ν ̄μ beam or ν ̄μ oscillation inconsistent with observed νμ oscillation. A combined study of all available Super-K oscillation samples measured the CP violating phase δCP and the sine square of the mixing angle θ(13).</p> <p>This analysis excluded δCP = 0 at the 2σ confidence level under both normal and inverted ordering hypotheses and produced a constraint of -2.978 rad < δCP < -0.467 rad in the normal ordering hypothesis.</p>
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spelling oxford-uuid:958004c7-baa9-476c-a8ac-a2cb23f98c822023-12-08T10:21:24ZThe search for CP violation in neutrino oscillations at T2KThesishttp://purl.org/coar/resource_type/c_db06uuid:958004c7-baa9-476c-a8ac-a2cb23f98c82Neutrino oscillationsPhysicsExperimental particle physicsEnglishHyrax Deposit2017Shah, RK<p>T2K is a long-baseline neutrino oscillation experiment, designed to study the oscillation of a high-intensity muon neutrino beam produced by the J-PARC ac- celerator facility. Neutrinos are detected 295 km downstream of the production point at Super-Kamiokande, a 50 kt water Cherenkov detector capable of differ- entiating between muon neutrino and electron neutrino events. Two beam configurations are possible at T2K, each used to create neutrino beams composed of predominantly neutrinos or anti-neutrinos. Comparisons of the disappearance of muon neutrinos and the appearance of electron neutrinos in the neutrino and anti-neutrino beams are used to measure the neutrino oscillation parameters.</p> <p>Presented in this thesis are the results of many analyses designed to study various combinations of the Super-Kamiokande oscillation data sets. Analyses considering the antineutrino beam data sets found no substantial evidence for ν ̄e appearance in a ν ̄μ beam or ν ̄μ oscillation inconsistent with observed νμ oscillation. A combined study of all available Super-K oscillation samples measured the CP violating phase δCP and the sine square of the mixing angle θ(13).</p> <p>This analysis excluded δCP = 0 at the 2σ confidence level under both normal and inverted ordering hypotheses and produced a constraint of -2.978 rad < δCP < -0.467 rad in the normal ordering hypothesis.</p>
spellingShingle Neutrino oscillations
Physics
Experimental particle physics
Shah, RK
The search for CP violation in neutrino oscillations at T2K
title The search for CP violation in neutrino oscillations at T2K
title_full The search for CP violation in neutrino oscillations at T2K
title_fullStr The search for CP violation in neutrino oscillations at T2K
title_full_unstemmed The search for CP violation in neutrino oscillations at T2K
title_short The search for CP violation in neutrino oscillations at T2K
title_sort search for cp violation in neutrino oscillations at t2k
topic Neutrino oscillations
Physics
Experimental particle physics
work_keys_str_mv AT shahrk thesearchforcpviolationinneutrinooscillationsatt2k
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