An Alternative Formation Model for Antideuterons from Dark Matter

Abstract

Antideuterons are a potential messenger for dark matter annihilation or decay in our own galaxy, with very low backgrounds expected from astrophysical processes. The standard coalescence model of antideuteron formation, while simple to implement, is shown to be under considerable strain by recent data from the LHC. We suggest a new empirically based model, with only one free parameter, which is better able to cope with these data, and we explore the consequences of the model for dark matter searches.

19 pages, 15 figures, C++ code with parametrised cross sections can be found in the ancillary folder, v2 fixes important missing references

References in corpus (4)

• ABC Effect in Basic Double-Pionic Fusion --- Observation of a new resonance?
• Deuteron and Anti-deuteron Production in e+e- Collisions at the Z Resonance
• Direct constraints on diffusion models from cosmic-ray positron data: Excluding the Minimal model for dark matter searches
• Antideuterons from dark matter annihilations and hadronization model dependence

Cited by in corpus (9)

• Review of the theoretical and experimental status of dark matter identification with cosmic-ray antideuterons
• Prospects to verify a possible dark matter hint in cosmic antiprotons with antideuterons and antihelium
• Revisiting cosmic ray antinuclei fluxes with a new coalescence model
• Production and acceleration of antinuclei in supernova shockwaves
• Enhanced deuteron coalescence probability in jets
• Antideuterons from Decaying Gravitino Dark Matter
• Production of loosely-bound hadron molecules from bottomonium decays
• Rapidity dependence of antideuteron coalescence in pp collisions at $\sqrt{s}$ = 13 TeV with ALICE
• Hadronic Rescattering in pA and AA Collisions