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Galactic Center Gas Clouds and Novel Bounds on Ultra-Light Dark Photon, Vector Portal, Strongly Interacting, Composite, and Super-Heavy Dark Matter

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arxiv 1812.10919 v2 pith:6GUL7UT2 submitted 2018-12-28 hep-ph

classification hep-ph
keywords darkmattercenterboundscloudcloudsgalacticheating
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Cold gas clouds recently discovered hundreds of parsecs from the center of the Milky Way Galaxy have the potential to detect dark matter. With a detailed treatment of gas cloud microphysical interactions, we determine Galactic Center gas cloud temperatures, free electron abundances, atomic ionization fractions, heating rates, cooling rates, and find how these quantities vary with metallicity. Considering a number of different dark sector heating mechanisms, we set new bounds on ultra-light dark photon dark matter for masses $10^{-22}-10^{-10}$ eV, vector portal dark matter coupled through a sub-MeV mass boson, and up to $10^{60}$ GeV mass dark matter that interacts with baryons.

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Forward citations

Cited by 9 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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  3. New Windows on Heavy Dark Matter: Mineral Melt Modelling and X-Ray Readout for Muscovite Mica

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  4. Sub-MHz Radio Background from Ultralight Dark Photon Dark Matter

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    Dark inverse Compton scattering of cosmic-ray electrons and positrons on ultralight dark photon dark matter produces a sub-MHz radio background that, compared with IMP-6, RAE-2, and Parker Solar Probe data, constrains...

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