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  • PhysRevD.91.051102

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Search for short baseline $ν_e$ disappearance with the T2K near detector

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  • T2K Collaboration
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Article number051102
<mark>Journal publication date</mark>16/03/2015
<mark>Journal</mark>Physical Review D
Issue number5
Volume91
Number of pages8
Publication StatusPublished
<mark>Original language</mark>English

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 $\Delta m^2_{eff} > 7 eV^2 / c^4$.

Bibliographic note

8 pages, 6 figures, submitted to PRD rapid communication © 2015 American Physical Society