Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Possibility of Searching for Fourth Generation Neutrino at Future ep
  Colliders   We investigate the production of fourth generation neutrino in the context of
new $e \nu_4 W$ magnetic dipole moment type interaction in $ep$ collisions at
the future lepton-hadron colliders. We have obtained the mass limits of 700 GeV
for THERA ($\sqrt S$=1 TeV) and 2.8 TeV for LC$\otimes$ LHC ($\sqrt S$=3.74
TeV).

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The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
18
The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex