Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Katrin - Direct Measurement of Neutrino Masses in the Sub-Ev Region   The \underline{KA}rlsruhe \underline{TRI}tium \underline{N}eutrino Mass
Experiment is a next generation tritium beta decay experiment designed to reach
a sensitivity of $0.2~ \mathrm{eV}/\mathrm{c}^2$. KATRIN will allow to
investigate the role of the neutrino hot dark matter in the evolution of large
scale structures of the universe and will also allow to discriminate between
so-called hierarchical and quasi-degenerated neutrino mass models. The status
of the first components of the final KATRIN setup will be shown.

10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph