Ieki Observation of ?_µ??_e Oscillation in the T2K Experiment

1. Auflage 2016
ISBN: 978-4-431-55837-8
Verlag: Springer Tokyo
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 199 Seiten, eBook

Reihe: Springer Theses

In this thesis the author contributes to the analysis of neutrino beam data collected between 2010 and 2013 to identify ? µ ?? e   events at the Super-Kamiokande detector. In particular, the author improves the pion–nucleus interaction uncertainty, which is one of the dominant systematic error sources inT2K neutrino oscillation measurement. In the thesis, the measurement of ? µ ?? e    oscillation in the T2K (Tokai to Kamioka) experiment is presented and a new constraint on d CP  is obtained. This measurement and the analysis establish, at greater than 5s significance, the observation of ? µ ?? e   oscillation for the first time in the world. Combining the T2K ? µ ?? e   oscillation measurement with the latest findings on oscillation parameters including the world average value of ?13 from reactor experiments, the constraint on the value of d CP  at the 90% confidence level is obtained. This constraint on d CP  is an important step towards the discovery of CP violation in the lepton sector.

Zielgruppe

Research

Autoren/Hrsg.

Ieki, Kei

Inhaltsverzeichnis

Introduction.- Overview of the T2K experiment.- The Fine-Grained Detector.- Pion Interaction measurement at TRIUMF M11 Beamline.- Extraction of Pion Absorption and Charge Exchange Cross Section.- Improvement of pion interaction model.- Monte Carlo Simulation for the Oscillation Analysis.- Near Detector Measurement.- Far Detector Measurement.- Oscillation Analysis and Results.-  Conclusion.