A measurement of the electron neutrino component in the T2K beam using the tracker detectors and the electromagnetic calorimeter at the near detector ND280

Christodoulou, Georgios (2011) A measurement of the electron neutrino component in the T2K beam using the tracker detectors and the electromagnetic calorimeter at the near detector ND280. PhD thesis, University of Liverpool.

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Abstract

Starting with a muon neutrino (vμ) beam T2K is searching for electron neutrino (ve) ap- pearance in the Far Detector (Super-Kamiokande) and aims to produce the first measure- ment of the neutrino mixing angle e13. Beam contamination of Ve is one of the main background components. The Near Detector, ND280, is optimized for measuring the u; contamination through the reconstruction of Ve interactions. The u; beam contamination is studied in this thesis. The total number of Ve beam events reconstructed in ND280 is 51.2 +21.3 stat. +10.1 sys/ -21.3 stat. -14.4 sys for 1.068 x10 to the power of 20 protons on target, a resu t w lC IS consistent with the Monte Carlo expectations. This result a supplementary statement to the vμ -> 7 Ve oscillation signal observed at Super-Kamiokande during the first year of T2K run, as no significant excess in the expected Ve beam contamination has been observed.

Item Type:	Thesis (PhD)
Depositing User:	Symplectic Admin
Date Deposited:	19 Oct 2023 15:11
Last Modified:	19 Oct 2023 15:17
DOI:	10.17638/03174161
Copyright Statement:	Copyright © and Moral Rights for this thesis and any accompanying data (where applicable) are retained by the author and/or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge.
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3174161