Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tomographic image of the proton   We determine, based on the latest experimental Deep Virtual Compton
Scattering experimental data, the dependence of the spatial size of the proton
on the quark's longitudinal momentum. This results in a three-dimensional
momentum-space image and tomography of the proton.

4
The categories of this paper are: cond-mat
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The categories of this paper are: eess
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The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom