Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurements of $\pi^{\pm}$ differential yields from the surface of the
  T2K replica target for incoming 31 GeV/c protons with the NA61/SHINE
  spectrometer at the CERN SPS   Measurements of particle emission from a replica of the T2K 90 cm-long carbon
target were performed in the NA61/SHINE experiment at CERN SPS, using data
collected during a high-statistics run in 2009. An efficient use of the
long-target measurements for neutrino flux predictions in T2K requires
dedicated reconstruction and analysis techniques. Fully-corrected differential
yields of $\pi^\pm$-mesons from the surface of the T2K replica target for
incoming 31 GeV/c protons are presented. A possible strategy to implement these
results into the T2K neutrino beam predictions is discussed and the propagation
of the uncertainties of these results to the final neutrino flux is performed.

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The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
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The categories of this paper are: ao-sci
18
The categories of this paper are: econ
1
The categories of this paper are: cs
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The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th