Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The KASKA project - a Japanese medium-baseline reactor-neutrino
  oscillation experiment to measure the mixing angle $\theta_{13}$ -   A new reactor-neutrino oscillation experiment, KASKA, is proposed to measure
the unknown neutrino-mixing angle $\theta_{13}$ using the world's most powerful
Kashiwazaki-Kariwa nuclear power station. It will measure a very small deficit
of reactor-neutrino flux using three identical detectors, two placed just close
to the sources and one at a distance of about 1.8km. Its conceptual design and
physics reach are discussed.

7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
2
The categories of this paper are: math