Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An analytic solution of the BFKL equation with momentum cutoffs   We outline a general method for obtaining the solution to the ($t=0$) BFKL
equation in the presence of transverse momentum cutoffs. A lower cutoff allows
one to avoid integration over nonperturbative momenta and an upper one is
needed from energy-momentum conservation. Our method allows for the inclusion
of an arbitrary number of poles in the kernel and is applicable to any input
distribution. Taking Mellin transforms, we discuss the effect of introducing
cutoffs by considering the singularity structure in the transform space. We
present an improved calculation of the small-$x$ slope of the gluon density.

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The categories of this paper are: q-alg
3
The categories of this paper are: physics
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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: nlin
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The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: stat
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The categories of this paper are: math
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex