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A theory of dark matter

Arkani-Hamed, Nima; Finkbeiner, Douglas P.; Slatyer, Tracy R. +1 more

We propose a comprehensive theory of dark matter that explains the recent proliferation of unexpected observations in high-energy astrophysics. Cosmic ray spectra from ATIC and PAMELA require a WIMP (weakly interacting massive particle). with mass M_χ∼500 800GeV that annihilates into leptons at a level well above that expected from a the…

New twist on excited dark matter: Implications for INTEGRAL, PAMELA/ATIC/PPB-BETS, DAMA

Cline, James M.; Chen, Fang; Frey, Andrew R.

We show that the 511 keV gamma ray excess observed by INTEGRAL/SPI can be more robustly explained by exciting dark matter (DM) at the center of the galaxy, if there is a peculiar spectrum of DM states χ₀, χ₁, and χ₂, with masses M₀∼500GeV, M₁≲M₀+2m_e, and M₂=M