Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of Unpolarized and Polarized Cross Sections for Deeply
  Virtual Compton Scattering on the Proton at Jefferson Laboratory with CLAS   This paper reports the measurement of polarized and unpolarized cross
sections for the ep -> e'p' reaction, which is comprised of Deeply Virtual
Compton Scattering (DVCS) and Bethe-Heitler (BH) processes, at an electron beam
energy of 5.88 GeV at the Thomas Jefferson National Accelerator Facility using
the Large Acceptance Spectrometer CLAS. The unpolarized cross sections and
polarized cross section differences have been measured over broad kinematics,
0.10 < x_B < 0.58, 1.0 < Q^2 < 4.8 GeV^2, and 0.09 < -t < 2.00 GeV^2. The
results are found to be consistent with previous CLAS data, and these new data
are discussed in the framework of the generalized parton distribution approach.
Calculations with two widely used phenomenological models, denoted VGG and
KMSC, are approximately compatible with the experimental results over a large
portion of the kinematic range of the data.

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The categories of this paper are: chem-ph
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The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: stat
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The categories of this paper are: nlin
2
The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
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The categories of this paper are: cond-mat
1
The categories of this paper are: cs
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The categories of this paper are: physics
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The categories of this paper are: plasm-ph
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The categories of this paper are: supr-con
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The categories of this paper are: ao-sci