Mixed Wino-Axion Dark Matter in String/M Theory and the 130 GeV Gamma-line "Signal"
Abstract
String/M theory compactifications with low energy supersymmetry tend to predict that dark matter has two components: axions and WIMPs 1004.5138,1204.2795. In accord with this, we show that the tentative 130 GeV gamma-line signal reported in 1204.2797 can be interpreted as arising from the annihilation of 145 GeV mass, Wino-like WIMPs into a Z-boson and a photon. In this context, the signal implies a second component of dark matter which we interpret as being composed of axions - the relative Wino/Axion abundances being approximately equal. Further predictions are implied: signals in both diffuse and monochromatic photons from dwarf spheroidal galaxies; monochromatic photons with energy 145 GeV; for the LHC, the Higgs boson mass has been predicted in this framework 1112.1059, and the current Higgs limits provide interesting constraints on the mass of the Gluino.
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.