Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of Sigma-beam Asymmetry Data on Fits to Single Pion
  Photoproduction off Neutron   We investigate the influence of new GRAAL Sigma-beam asymmetry measurements
on the neutron in multipole fits to the single-pion photoproduction database.
Results are compared to those found with the addition of a double-polarization
quantity associated with the sum rule.

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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: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
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The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
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The categories of this paper are: alg-geom
2
The categories of this paper are: math
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The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
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The categories of this paper are: stat
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The categories of this paper are: eess
1
The categories of this paper are: cs
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The categories of this paper are: chem-ph