Indirect dark-matter detection with MadDM v3.2 — Lines and Loops. (arXiv:2107.04598v1 [hep-ph])

Indirect dark-matter detection with MadDM v3.2 — Lines and Loops. (arXiv:2107.04598v1 [hep-ph])
<a href="http://arxiv.org/find/hep-ph/1/au:+Arina_C/0/1/0/all/0/1">Chiara Arina</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Heisig_J/0/1/0/all/0/1">Jan Heisig</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Maltoni_F/0/1/0/all/0/1">Fabio Maltoni</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Massaro_D/0/1/0/all/0/1">Daniele Massaro</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Mattelaer_O/0/1/0/all/0/1">Olivier Mattelaer</a>

Automated tools for the computation of particle physics’ processes have
become the backbone of phenomenological studies beyond the standard model.
Here, we present MadDM v3.2. This release enables the fully automated
computation of loop-induced dark-matter annihilation processes, relevant for
indirect detection observables. Special emphasis lies on the annihilation into
$gamma X$, where $X=gamma, Z, h$ or any new particle even under the dark
symmetry. These processes lead to the sharp spectral feature of monochromatic
gamma lines – a smoking-gun signature of dark matter in our Galaxy. MadDM
provides the predictions for the respective fluxes near-Earth and derives
constraints from the gamma-ray line searches by Fermi-LAT and HESS. As an
application, we discuss the implications for the viable parameter space of a
top-philic $t$-channel mediator model and the inert doublet model.

Automated tools for the computation of particle physics’ processes have
become the backbone of phenomenological studies beyond the standard model.
Here, we present MadDM v3.2. This release enables the fully automated
computation of loop-induced dark-matter annihilation processes, relevant for
indirect detection observables. Special emphasis lies on the annihilation into
$gamma X$, where $X=gamma, Z, h$ or any new particle even under the dark
symmetry. These processes lead to the sharp spectral feature of monochromatic
gamma lines – a smoking-gun signature of dark matter in our Galaxy. MadDM
provides the predictions for the respective fluxes near-Earth and derives
constraints from the gamma-ray line searches by Fermi-LAT and HESS. As an
application, we discuss the implications for the viable parameter space of a
top-philic $t$-channel mediator model and the inert doublet model.

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