Weak Corrections are Relevant for Dark Matter Indirect Detection

By P. Ciafaloni, D. Comelli, A. Riotto, F. Sala, Alessandro Strumia, A. Urbano. 2010

364 citations recorded by the source corpus.

The computation of the energy spectra of Standard Model particles originated from the annihilation/decay of dark matter particles is of primary importance in indirect searches of dark matter. We compute how the inclusion of electroweak corrections significantly alter such spectra when the mass M of dark matter particles is larger than the electroweak scale: soft electroweak gauge bosons are copiously radiated opening new channels in the final states which otherwise would be forbidden if such corrections are neglected. All stable particles are therefore present in the final spectrum, independently of the primary channel of dark matter annihilation/decay. Such corrections are model-independent.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/871417dd0a51d2c20fe7903208890a3918aaec9c

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Citations in the corpus

Dark matter and pulsar model constraints from Galactic Center Fermi-LAT gamma-ray observations (2013, background): “1 [39] (C++ version), that software analysis using interpolating functions can overestimate the energy cut-off of the gamma-ray spectra [40], and that not considering electroweak corrections can also create deviations between predicted DM annihilitions spectra [41, 42].”
Astrophysical models for the origin of the positron (2011, background): “they implicitly need astrophysical sources anyway, whose role would be to tighten the constraints; b) for heavy DM, they neglect e ffects related to electroweak bremmsthralung [52, 53, 54, 55, 56], which have been shown to impact constraints (see for example [57, 58, 59, 60]); c) when engineering “l”
MadDM v.3.0: A comprehensive tool for dark matter studies (2018, methodology): “set indirect_flux_source_method PPPC4DMID_ew MadDM will use the tabulated energy spectra that include EW corrections [51]11.”
Sensitivity projections for dark matter searches with the Fermi large area telescope (2016, background): “The electroweak corrections are expected to be important (assuming s-wave annihilation) when the DM mass is heavier than 1 TeV, and for this mass range would alter the spectra substantially for the W+W−, e+e−, μ+μ− and τ+τ− channels, increasing the number of expected γ rays per DM annihilation below”