Search for short baseline νe disappearance with the T2K near detector
Abstract
The T2K experiment has performed a search for νe disappearance due to sterile neutrinos using 5.9 ×1 020 protons on target for a baseline of 280 m in a neutrino beam peaked at about 500 MeV. 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% C.L. is approximately sin22 θee >0.3 for Δ meff2 >7 eV2/c4 .
- Publication:
-
Physical Review D
- Pub Date:
- March 2015
- DOI:
- arXiv:
- arXiv:1410.8811
- Bibcode:
- 2015PhRvD..91e1102A
- Keywords:
-
- 14.60.Pq;
- 14.60.St;
- Neutrino mass and mixing;
- Non-standard-model neutrinos right-handed neutrinos etc.;
- High Energy Physics - Experiment
- E-Print:
- 8 pages, 6 figures, submitted to PRD rapid communication