Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diffraction at small M^2/Q^2 in the QCD dipole picture   Using the QCD dipole picture of BFKL dynamics, the quasi elastic component of
the diffractive gamma*-dipole cross-section, dominating at small M^2/Q^2, is
calculated.

5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con