Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generic calculation of two-body partial decay widths at the full
  one-loop level   We describe a fully generic implementation of two-body partial decay widths
at the full one-loop level in the SARAH and SPheno framework compatible with
most supported models. It incorporates fermionic decays to a fermion and a
scalar or a gauge boson as well as scalar decays into two fermions, two gauge
bosons, two scalars or a scalar and a gauge boson. We present the relevant
generic expressions for virtual and real corrections. Whereas wavefunction
corrections are determined from on-shell conditions, the parameters of the
underlying model are by default renormalised in a DR (or MS) scheme. However,
the user can also define model-specific counter-terms. As an example we discuss
the renormalisation of the electric charge in the Thomson limit for top-quark
decays in the standard model. One-loop induced decays are also supported. The
framework additionally allows the addition of mass and mixing corrections
induced at higher orders for the involved external states. We explain our
procedure to cancel infra-red divergences for such cases, which is achieved
through an infra-red counter-term taking into account corrected Goldstone boson
vertices. We compare our results for sfermion, gluino and Higgs decays in the
minimal supersymmetric standard model (MSSM) against the public codes SFOLD,
FVSFOLD and HFOLD and explain observed differences. Radiative induced gluino
and neutralino decays are compared against the original implementation in
SPheno in the MSSM. We exactly reproduce the results of the code CNNDecays for
decays of neutralinos and charginos in R-parity violating models. The new
version SARAH 4.11.0 by default includes the calculation of two-body decay
widths at the full one-loop level. Current limitations for certain model
classes are described.

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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph