Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Collision Energy Dependence of Dijet Cross Sections as a Probe of
  BFKL Physics   The dependence of the subprocess cross section for dijet production at fixed
transverse momentum on the (large) rapidity separation Delta y of the dijets
can be used to test for `BFKL physics', i.e. the presence of higher--order
(alphas log(Delta y)^n contributions. Unfortunately in practice these subtle
effects are masked by the additional, stronger dependence arising from the
parton distributions. We propose a simple ratio test using two different
collider energies n which the parton distribution dependence largely cancels.
Such a ratio does distinguish between the `asymptotic' analytic BFKL and
lowest-order QCD predictions. However, when subasymptotic effects from overall
energy-momentum conservation are included, the BFKL predictions for present
collider energies change qualitatively. In particular, the real gluon emission
contributions to the BFKL cross section are suppressed. The proposed ratio
therefore provides an interesting laboratory for studying the interplay of
leading-logarithm and kinematic effects.

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The categories of this paper are: atom-ph
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The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: cond-mat
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The categories of this paper are: eess