Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Complete Nagy-Soper subtraction for next-to-leading order calculations
  in QCD   We extend the Helac-Dipoles package with the implementation of a new
subtraction formalism, first introduced by Nagy and Soper in the formulation of
an improved parton shower. We discuss a systematic, semi-numerical approach for
the evaluation of the integrated subtraction terms for both massless and
massive partons, which provides the missing ingredient for a complete
implementation. In consequence, the new scheme can now be used as part of a
complete NLO QCD calculation for processes with arbitrary parton masses and
multiplicities. We assess its overall performance through a detailed comparison
with results based on Catani-Seymour subtraction. The importance of random
polarization and color sampling of the external partons is also examined.

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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
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The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
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The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int