Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized distribution amplitudes: new tools to study hadrons'
  structure and interactions   A non-perturbative approach to Generalized Parton Distributions, and to
Deeply Virtual Compton Scattering in particular, based on off mass shell
extension of dual amplitudes with Mandelstam analyticity (DAMA) is developed
with the spin and helicity structure as well as the threshold behavior
accounted for. The model is tested against the data on deep inelastic
electron-proton scattering from JLab.

11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ