PT Journal
AU Wang, E
   Alvarez-Ruso, L
   Hayato, Y
   Mahn, K
   Nieves, J
TI Photon emission in neutral current interactions at the T2K experiment
SO Physical Review D
JI Phys. Rev. D
PY 2015
BP 053005
EP 8pp
VL 92
IS 5
DI 10.1103/PhysRevD.92.053005
LA English
AB We have applied a microscopic model for single photon emission in neutral current interactions on nucleons and nuclei to determine the number and distributions of such events at the Super-Kamiokande detector, for the flux and beam exposure of the T2K experiment in neutrino mode. These reactions represent an effectively irreducible background in electron-(anti) neutrino appearance measurements aimed at a precise measurement of mixing angle theta(13) and the CP violating phase. We have obtained a total number of photon events that is twice as large as the one from the NEUT event generator (version 5.1.4.2) used in the analysis of T2K data. Detailed comparisons of energy and angular distributions for the nu μand (nu) over bar μfluxes have also been performed.
ER