Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scaling of Charged Particle Production in d+Au Collisions at sqrt(s_NN)
  = 200 GeV   The measured pseudorapidity distributions of primary charged particles over a
wide pseudorapidity range of |eta| < 5.4 and integrated charged particle
multiplicities in d+Au collisions at sqrt(s_NN) = 200 GeV are presented as a
function of collision centrality. The longitudinal features of d+Au collisions
at sqrt(s_NN) = 200 GeV are found to be very similar to those seen in p + A
collisions at lower energies. The total multiplicity of charged particles is
found to scale with the total number of participants according to N^{dAu}_{ch}
= 1/2 <N_{part}> N^{pp}_{ch} and the energy dependence of the density of
charged particles produced in the fragmentation region exhibits extensive
longitudinal scaling.

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The categories of this paper are: acc-phys
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ex
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The categories of this paper are: cond-mat
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: cs
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-lat