Automated tools for the computation of amplitudes and cross sections have become the backbone of phenomenological studies beyond the standard model. We present the latest developments in MadDM, a calculator of dark-matter observables based on MadGraph5_aMC@NLO. The new version enables the fully automated computation of loop-induced annihilation processes, relevant for indirect detection of dark matter. Of particular interest is the direct annihilation into photons, γγ, γX. These processes lead to monochromatic gamma-ray lines that are smoking-gun signatures for dark-matter annihilation in our Galaxy. MadDM computes the predictions for the expected photon fluxes near Earth and derives constraints from the gamma-ray line searches by Fermi-LAT and HESS. As an application, we present the implications for the parameter space of the Inert Doublet Model.

Studying dark matter with MadDM: lines and loops / Massaro, D.; Arina, C.; Heisig, J.; Maltoni, F.; Mattelaer, O.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - ELETTRONICO. - 2156:1(2021), pp. 012073.1-012073.5. (Intervento presentato al convegno 17th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2021) tenutosi a Online nel 26 August-3 September 2021) [10.1088/1742-6596/2156/1/012073].

Studying dark matter with MadDM: lines and loops

Massaro, D.;Maltoni, F.;
2021

Abstract

Automated tools for the computation of amplitudes and cross sections have become the backbone of phenomenological studies beyond the standard model. We present the latest developments in MadDM, a calculator of dark-matter observables based on MadGraph5_aMC@NLO. The new version enables the fully automated computation of loop-induced annihilation processes, relevant for indirect detection of dark matter. Of particular interest is the direct annihilation into photons, γγ, γX. These processes lead to monochromatic gamma-ray lines that are smoking-gun signatures for dark-matter annihilation in our Galaxy. MadDM computes the predictions for the expected photon fluxes near Earth and derives constraints from the gamma-ray line searches by Fermi-LAT and HESS. As an application, we present the implications for the parameter space of the Inert Doublet Model.
2021
17th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2021), 26 August-3 September 2021, Online
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Studying dark matter with MadDM: lines and loops / Massaro, D.; Arina, C.; Heisig, J.; Maltoni, F.; Mattelaer, O.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - ELETTRONICO. - 2156:1(2021), pp. 012073.1-012073.5. (Intervento presentato al convegno 17th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2021) tenutosi a Online nel 26 August-3 September 2021) [10.1088/1742-6596/2156/1/012073].
Massaro, D.; Arina, C.; Heisig, J.; Maltoni, F.; Mattelaer, O.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/870084
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