Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lepton Flavor Changing Neutral Current Processes at Lepton-Hadron
  Colliders   We investigate the potentials of high energy lepton-proton colliders to
detect a flavor changing $l-l^{\prime}-Z$ or $l-l^{\prime}-\gamma$ couplings
from the processes $ep\to\mu(\tau)X$ and $\mu p\to \tau X$. For the
$l-l^{\prime}-Z$ coupling we consider string inspired $E_6$ model whereas
$l-l^{\prime}-\gamma$ coupling is analyzed in the framework of anomalous
magnetic moment type interaction (AMMI) model.

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The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: gr-qc
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The categories of this paper are: physics
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The categories of this paper are: hep-ex
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex