Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session T17: Neutrinos III
3:30 PM–5:18 PM,
Monday, April 15, 2019
Sheraton
Room: Grand Ballroom II
Sponsoring
Unit:
DPF
Chair: Young-Kee Kim
Abstract: T17.00003 : Initial study of the Neutral Current Single π0 production in muon anti-neutrino interaction on water with the P0D Detector at T2K*
3:54 PM–4:06 PM
View Presentation Abstract
Presenter:
Shilin Liu
(Stony Brook University)
Author:
Shilin Liu
(Stony Brook University)
Collaboration:
T2K
The T2K experiment is a long-baseline neutrino oscillation experiment in Japan. It measures νμ appearance in νe beam and aims to measure the last lepton sector mixing angle θ13 and oscillation parameters θ23 and Δm232 . The experiment also search for sterile neutrino and measure neutrino cross section. The neutrino beam is generated at the J-PARC nuclear physics site in Tokai on the east coast of Japan and goes 295 km directly to Super-Kamiokande detector in Kamioka mine on the west coast. The Super-K is a water Cherenkov detector that can measure and distinguish νμ and νe. One of the main background in the Super-K when measuring neutrino is the Neutral Current Single π0 (NC1π0) interaction of the neutrino with water. The process is not well understood. In order to constrain this background, π0 Detector (P0D) is introduced in the near detector complex (ND280) located 280 meters downstream of the origin of beam. P0D has 50 water bags that can be filled and drained to give analyzers access to a mass subtraction to find on-water cross section. In this initial study, I will present the measurement of NC1π0 rate on-water with anti-νμ beam. The on-water rate will be obtained by comparing the interaction when the bags are filled with water and empty.
*Funding from Stony Brook NN Group
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