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SUPERDENSE DARK MATTER CLUMPS FROM NONSTANDARD PERTURBATIONS

机译:来自非标准扰动的超级暗物质团块

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The formation of dark matter clumps around cosmic string loops is studied. These clumps can form before the matter-radiation equality and can have densities ρeq, where ρeq is the density at the equality. We take into account the velocity distribution of the strings, and consider two extreme regimes of DM annihilation: fast decay and continuous evaporation. We conclude that 100 GeV neutralino DM is incompatible with the range of the strings’ tension 5 × 10~(-10) < Gμ/c~2 < 5.1 × 10~(-9) because the gamma-ray signal from DM annihilation exceeds the Fermi-LAT limit in this case.
机译:研究了宇宙弦环周围的暗物质团块的形成。这些丛可以在物质 - 辐射平等之前形成并且可以具有密度ρeq,其中ρeq是平等的密度。我们考虑了琴弦的速度分布,并考虑DM湮灭的两个极端制度:快速衰减和持续蒸发。我们得出结论,100 GEV中性DM与弦张力5×10〜(-10)

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