Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theoretical considerations on multiparton interactions in QCD   We investigate several ingredients for a theory of multiple hard scattering
in hadron-hadron collisions. Issues discussed include the space-time structure
of multiple interactions, their power behavior, spin and color correlations,
interference terms, scale evolution and Sudakov logarithms. We discuss
possibilities to constrain multiparton distributions by lattice calculations
and by connecting them with generalized parton distributions. We show that the
behavior of two-parton distributions at small interparton distances leads to
problems with ultraviolet divergences and with double counting, which requires
modification of the presently available theoretical framework.

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The categories of this paper are: astro-ph
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The categories of this paper are: cond-mat
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
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The categories of this paper are: math-ph
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph