vbid/9784431558378

Description

In this thesis the author contributes to the analysis of neutrino beam data collected between 2010 and 2013 to identify�????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 in T2K neutrino oscillation measurement. In the thesis, the measurement of�????e��oscillation in the T2K (Tokai to Kamioka) experiment is presented and a new constraint on ?CP�is obtained. This measurement and the analysis establish, at greater than 5? significance, the observation of�????e �oscillation for the first time in the world. Combining the T2K�????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�?CP�at the 90% confidence level is obtained. This constraint on�?CP�is an important step towards the discovery of CP violation in the lepton sector.�Typham this is the title: Observation of ?_???_e Oscillation in the T2K Experiment