Constraints on hadronically decaying dark matter

Journal Article · Wed Aug 01 00:00:00 EDT 2012 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2012/08/025· OSTI ID:22279867

Garny, Mathias; Ibarra, Alejandro; Tran, David ^[1]

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1. Physik-Department T30d, Technische Universität München, James-Franck-Straße, 85748 Garching (Germany)

We present general constraints on dark matter stability in hadronic decay channels derived from measurements of cosmic-ray antiprotons. We analyze various hadronic decay modes in a model-independent manner by examining the lowest-order decays allowed by gauge and Lorentz invariance for scalar and fermionic dark matter particles and present the corresponding lower bounds on the partial decay lifetimes in those channels. We also investigate the complementarity between hadronic and gamma-ray constraints derived from searches for monochromatic lines in the sky, which can be produced at the quantum level if the dark matter decays into quark-antiquark pairs at leading order.

• OSTI ID: 22279867
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 08; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ANTIPROTONS
ASTROPHYSICS
COSMIC RADIATION
COSMOLOGY
GAMMA RADIATION
HADRONIC PARTICLE DECAY
LIFETIME
LORENTZ INVARIANCE
MONOCHROMATIC RADIATION
NONLUMINOUS MATTER
QUARK-ANTIQUARK INTERACTIONS
SCALARS