Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for short baseline $\nu_e$ disappearance with the T2K near
  detector   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 $\Delta m^2_{eff} > 7 eV^2 / c^4$.

11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th