Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: MasterTwo: A Mathematica Package for the Automated Calculation of Two
  Loop Diagrams in the Standard Model and Beyond   The calculation of rare loop decays in the Standard Model of Particle Physics
and its extensions is an extremely tedious work. The Mathematica package
MasterTwo facilitates this task. It automatically calculates all loop integrals
reducible to scalar integrals depending on up to two different masses
independent of external momenta. MasterTwo consists of two sub packages,
Fermions and Integrals. Whereas Fermions covers the standard Dirac Algebra,
Integrals performs the Taylor expansion, partial fraction, tensor reduction and
the integration of the thus achieved scalar integrals. The package works
completely inside Mathematica and can be easily customised for both educational
and research purposes.

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The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: eess
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-th
3
The categories of this paper are: physics
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The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc