The Korean Physical Society 06130 22, Teheran-ro 7-gil, Gangnam-gu, Seoul, Republic of Korea 610 Representation : Tae Won NOH TEL: 02-556-4737 FAX: 02-554-1643 E-mail : webmaster@kps.or.kr Copyright(C) KPS, All rights reserved.

# The XXX International Conference on Neutrino Physics and Astrophysics (Neutrino 2022)

30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

## EM shower reconstruction and electron neutrino selection with the T2K SuperFGD detector

Not scheduled
5m
Virtual Seoul

#### Virtual Seoul

Poster Neutrino oscillation

### Description

The T2K experiment is a long-baseline neutrino oscillation experiment and aims at measuring the CP-violation in neutrino oscillations. So far, T2K has shown results that disfavored the CP conservation with a confidence level of $2\sigma$. One of the largest systematic uncertainties in the current oscillation analysis is the uncertainty of electron neutrino cross-sections. To reduce the uncertainties and perform more precise measurements of neutrino oscillations, we are planning to upgrade our near detector complex ND280. SuperFGD (Super Fine-Grained Detector), one of the newly introduced detectors, will consist of about two million $1\ \mathrm{cm}^3$ scintillator cubes whose scintillation light will be read out from three directions through wave-length-shifting fibers and photon detectors. This novel structure of SuperFGD allows us to perform precise 3D tracking as well as calorimetry. This poster will report the EM shower reconstruction methods developed for SuperFGD and the results of electron neutrino selection.

Collaboration T2K

### Primary author

Aoi Eguchi (The University of Tokyo)