A largely model-independent framework links dark matter annihilation, mediator decays, and semi-annihilation to both thermal freeze-out and present-day gamma-ray, neutrino, and antimatter fluxes, with benchmarks showing how their relative strengths shape observable spectra.
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Updated tabulated interstellar fluxes of antiprotons and antideuterons from weak-scale DM are provided using new propagation schemes and inelastic cross-sections, showing greater robustness than prior calculations.
Updated predictions for cosmic antinuclei fluxes from dark matter yield tighter upper limits on light DM annihilation cross sections from AMS-02 antiproton data and show that GAPS could improve those limits by up to an order of magnitude below 50 GeV.
NLO perturbative QCD calculations predict only a mild few-percent excess of antineutrons over antiprotons in pp collisions, not supporting the ~30% excess reported by NA49.
Updated constraints on two simplified dark matter models for the Galactic Center Excess leave unconstrained parameter space after applying recent multi-experiment data.
citing papers explorer
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Cosmic-Ray Signatures of Annihilating and Semi-Annihilating Dark Matter via One-Step Cascades
A largely model-independent framework links dark matter annihilation, mediator decays, and semi-annihilation to both thermal freeze-out and present-day gamma-ray, neutrino, and antimatter fluxes, with benchmarks showing how their relative strengths shape observable spectra.
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Refined anti-proton and anti-deuteron fluxes from weak-scale Dark Matter
Updated tabulated interstellar fluxes of antiprotons and antideuterons from weak-scale DM are provided using new propagation schemes and inelastic cross-sections, showing greater robustness than prior calculations.
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Revisiting predictions for cosmic-ray antinucleon fluxes from Galactic Dark Matter
Updated predictions for cosmic antinuclei fluxes from dark matter yield tighter upper limits on light DM annihilation cross sections from AMS-02 antiproton data and show that GAPS could improve those limits by up to an order of magnitude below 50 GeV.
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Proton-Proton to Antinucleon Cross Sections for Cosmic Ray Applications
NLO perturbative QCD calculations predict only a mild few-percent excess of antineutrons over antiprotons in pp collisions, not supporting the ~30% excess reported by NA49.
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Testing Viability of Benchmark Dark Matter Models for the Galactic Center Excess
Updated constraints on two simplified dark matter models for the Galactic Center Excess leave unconstrained parameter space after applying recent multi-experiment data.