Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: GPDs of hadrons and elastic pion-nucleon scattering   The pion structure is represented by Generelazed parton distribution
functions (GPDs). The momentum transfer dependence of GPDs of the pion was
obtained on the basis of the form of GPDs of the nucleon in the framework of
the high energy generalized structure (HEGS) model. To this end, different
forms of PDFs of the pion of various Collaborations were examined with taking
into account the available experimental data on the pion form factors. As a
result, the electromagnetic and gravitomagnetic form factors of the pion were
calculated. They were used in the framework of the HEGS model with the
electromagnetic and gravitomagnetic form factors of the proton for describing
pion-nucleon elastic scattering in a wide energy and momentum transfer region
with a minimum of fitting parameters. The properties of the obtained scattering
amplitude were analyzed.

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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-ex
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The categories of this paper are: funct-an
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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
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The categories of this paper are: cs
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
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The categories of this paper are: stat
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The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-th