Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Self-energy of Nucleon in the Pseudovector Coupling Pion-nucleon
  System for the Electromagnetic Form Factor of Proton   The electromagnetic form factor of proton is studied following our previous
calculation of the anomalous magnetic moment. The non-perturbative term is
incorporated to correct the $Q^2$ dependence.

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The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math