Publications: Sterile searches

Search for short baseline νe disappearance with the T2K near detector

ND280NueDisap_2014
November 4, 2014

The T2K experiment has performed a search for νe disappearance due to sterile neutrinos using 5.9×1020 protons on target for a baseline of 280m in a neutrino beam peaked at about 500MeV. A sample of νe CC interactions in the off-axis near detector has been selected with a purity of 63% and an efficiency of 26%. The p-value for the null hypothesis is 0.085 and the excluded region at 95% CL is approximately sin2ee > 0.3 for Δm2eff > 7eV2/c4.

Data release