Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Asymmetry distributions and mass effects in dijet events at a polarized
  HERA   The asymmetry distributions for several kinematic variables are considered
for finding a systematic way to maximize the signal for the extraction of the
polarized gluon density. The relevance of mass effects for the corresponding
dijet cross section is discussed and the different approximations for including
mass effects are compared. We also compare via the programs Pepsi and Mepjet
two different Monte Carlo (MC) approaches for simulating the expected signal in
the dijet asymmetry at a polarized HERA.

28
The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
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The categories of this paper are: stat
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat