Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Taming Deeply Virtual Compton Scattering   We study recent Deeply Virtual Compton scattering (DVCS) data within a dual
parameterization of the Generalized Parton Distributions (GPDs). This
parameterization allows to quantify the maximum amount of information, that can
be extracted from DVCS data, in a ``quintessence'' function. We present a
``zero step'' model for the latter solely based on the forward quark density,
providing a parameter free prediction for the imaginary part of the DVCS
amplitude. It is shown that the bulk effect of the $e p \to e p \gamma$ beam
helicity asymmetry can be understood within such a model.

17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph