# Search for short baseline $\nu_e$ disappearance with the T2K near detector

Abstract : The T2K experiment has performed a search for $\nu_e$ disappearance due to sterile neutrinos using $5.9 \times 10^{20}$ protons on target for a baseline of $280 m$ in a neutrino beam peaked at about $500 MeV$. A sample of \nu_e 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 $sin^2 2 \theta_{ee} > 0.3$ for $\Delta m^2_{eff} > 7 eV^2 / c^4$.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-01146091
Contributor : Dominique Girod <>
Submitted on : Monday, April 27, 2015 - 4:03:51 PM
Last modification on : Friday, September 10, 2021 - 1:50:14 PM

### Citation

K. Abe, J. Adam, H. Aihara, T. Akiri, C. Andreopoulos, et al.. Search for short baseline $\nu_e$ disappearance with the T2K near detector. Physical Review D, American Physical Society, 2015, 91, pp.051102. ⟨10.1103/PhysRevD.91.051102⟩. ⟨in2p3-01146091⟩

Record views