Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: $K^0 \Lambda$ and $D^- \Lambda_c^+$ production induced by pion beams off
  the nucleon   We present a comparative study of the pion induced production of $K^0
\Lambda$ and $D^- \Lambda_c^+$ off the nucleon. A hybrid framework is utilized
by combining an effective Lagrangian method with a Regge approach. We consider
the $t$-channel process in a plannar diagram by vector-meson Reggeon exchanges
and the $u$-channel one in a non-planar diagram by baryon Reggeon exchanges.
The present model reproduces the $K^0 \Lambda$ production data well with a few
parameters. Having fixed them, we predict the $D^- \Lambda_c^+$ production,
which turns out to be about $10^4-10^6$ times smaller than the strangeness one,
depending on the kinematical regions.

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The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas
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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: solv-int
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
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The categories of this paper are: chem-ph
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The categories of this paper are: eess
3
The categories of this paper are: physics