Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Single inclusive pion pT-spectra in proton-proton collisions at sqrt(s)
  = 22.4GeV: data versus perturbative QCD calculations   We compare the inclusive transverse momentum spectra of single pions above pT
= 3 GeV/c measured in proton-proton (p-p) collisions at sqrt(s) = 21.7 - 23.8
GeV, with next-to-leading order (NLO) perturbative QCD (pQCD) predictions using
recent parametrizations of the parton densities and parton-to-pion
fragmentation functions. Although the dependence on the theoretical scales is
large, the calculations can reproduce the experimental results both in
magnitude and shape. Based on the existing data and on a pQCD
$\sqrt{s}$-rescaling of the measured spectra, we provide a practical
parametrization of the baseline p-p pion transverse momentum spectrum to be
compared to nucleus-nucleus collisions data at sqrt(s_NN) = 22.4 GeV.

31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
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The categories of this paper are: funct-an
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin