Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: FeynHelpers: Connecting FeynCalc to FIRE and Package-X   We present a new interface called FeynHelpers that connects FeynCalc, a
Mathematica package for symbolic semi-automatic evaluation of Feynman diagrams
and calculations in quantum field theory (QFT) to Package-X and FIRE. The
former provides a library of analytic results for scalar 1-loop integrals with
up to 4 legs, while the latter is a general-purpose tool for reduction of
multi-loop scalar integrals using Integration-by-Parts (IBP) identities. With
this add-on many types of calculations that were difficult or hardly feasible
with FeynCalc previously, can now be done in a much simpler way. This is
demonstrated with four different examples from QED, QCD and Higgs physics.

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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: math
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
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The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
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The categories of this paper are: chem-ph