Ingredients to this analysis
The dark connection between Canis Major, Monoceros Stream, gas ...
The dark connection between Canis Major, Monoceros Stream, gas ...
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Does antipro<strong>to</strong>n data exclude interpretation of EGRET data?Bergstrom et al. astro-ph/0603632, Abstract:we investigate the viability of the model using the DarkSUSYpackage <strong>to</strong> compute the gamma-ray and antipro<strong>to</strong>n fluxes. We areable <strong>to</strong> show that their (=WdB et al) model is excluded by a widemargin from the measured flux of antipro<strong>to</strong>ns.Problem with DarkSUSY (DS):1) Flux of antipro<strong>to</strong>ns/gamma in DarkSUSY: O(1) from DMA.However, O(10 -2 ) from LEP dataReason: DS has diffusion box with isotropic diffusion ->DMA fills up box with high density of antipro<strong>to</strong>ns2) More realistic models have anisotropic diffusion.E.g. spiral galaxies have magnetic fields perpendicular <strong>to</strong>disk-> antipro<strong>to</strong>ns may spiral quickly out of Galaxy.In addition: convection of particles by CR pressure.Wim de Boer, Karlsruhe Seminar Oxford, May. 3, 2007 22
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