Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: MuMuPy: A Dimuonium-Matter Interaction Calculator   In this article, we present MuMuPy, a computational library and cloud-based
tool for calculating cross sections for the interaction of dimuonium (true
muonium) with matter. MuMuPy calculates corresponding form factors and allows
one to find the probabilities of dimuonium transitions in the electric field of
the nucleus.
  MuMuPy was developed in the context of the $\mu\mu$-tron facility, the
project of a low-energy electron-positron collider for production and
experimental study of dimuonium, proposed in our home institute, Budker
Institute of Nuclear Physics.
  The reliability of MuMuPy was verified by three independent methods, one of
which was developed by the authors earlier.

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The categories of this paper are: mtrl-th
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: econ
5
The categories of this paper are: gr-qc
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The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin