Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Natural CP Violation Criteria for the Minimal Supersymmetric Standard
  Model   $CP$ violating effects in the Minimal Supersymmetric Standard Model (MSSM)
can lead to excessively large contributions to the neutron EDM (\dn). We write
criteria which ensure that the low energy supergravity (SUGRA) parametrization
of the MSSM does not require fine-tunings or large mass scales to evade the
constraint from \dn, and consider the implications on SUGRA theories. In
particular, we show that in the Polonyi model, two of the mass scales are in
general complex, meaning that model does not naturally avoid a large \dn\ as is
sometimes claimed.

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The categories of this paper are: cond-mat
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The categories of this paper are: physics
31
The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
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The categories of this paper are: q-bio
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The categories of this paper are: cs
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th
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The categories of this paper are: econ
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph