Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-perturbative structure of semi-inclusive deep-inelastic and
  Drell-Yan scattering at small transverse momentum   We consider semi-inclusive deep inelastic scattering (SIDIS) and Drell-Yan
events within transverse momentum dependent (TMD) factorization. Based on the
simultaneous fit of multiple data points, we extract the unpolarized TMD
distributions and the non-perturbative evolution kernel. The high quality of
the fit confirms a complete universality of TMD non-perturbative distributions.
The extraction is supplemented by phenomenological analyses of various parts of
the TMD factorization, such as sensitivity to non-perturbative
parameterizations, perturbative orders, collinear distributions, correlations
between parameters, and others.

6
The categories of this paper are: astro-ph
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The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
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The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-bio
1
The categories of this paper are: cs