Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonperturbative approach to the parton model   The nonperturbative parton distributions, obtained from the Lorentz
contracted wave functions, are analyzed in the formalism of many-particle Fock
components and their properties are compared to the standard perturbative
distributions. We show that the collinear and IR divergencies specific for
perturbative evolution treatment are absent in the nonperturbative version,
however for large momenta< $ \vep^2_i \gg \sigma$ (string tension), the
bremsstrahlung kinematics is restored. A preliminary discussion of possible
nonperturbative effects in DIS and high energy scattering is given, including
in particular a possible role of multihybrid states in creating ridge-type
effects.

15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an