Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charm hadroproduction results from Selex   The SELEX experiment (E781) is 3-stage magnetic spectrometer for a high
statistics study of hadroproduction of charm baryons out to large x_F using 650
Gev Sigma-, pi- and p beams. The main features of the spectrometer are: a high
precision silicon vertex system, powerful particle identification provided by
TRD and RICH, forward Lambda decay spectrometer and 3-stage lead glass photon
detector. An experiment overview and spectrometer features are shown.
Reconstructed charm states and results on Lambda_c, D+ particles and
antiparticles produced by Sigma-, pi- and p beams at x_F>0.3 and asymmetry for
Lambda_c are presented.

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The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex