Exploring the role of axions and other WISPs in the dark universe

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Axions and other very weakly interacting slim particles (WISPs) may be non-thermally produced in the early universe and survive as constituents of the dark universe. We describe their theoretical motivation and their phenomenology. A huge region in parameter space spanned by their couplings to photons and their masses can give rise to the observed cold dark matter abundance. A wide range of experiments - direct dark matter searches exploiting microwave cavities, searches for solar axions or WISPs, and light-shining-through-a-wall searches - can probe large parts of this parameter space in the foreseeable future. © 2012.




Ringwald, A. (2012). Exploring the role of axions and other WISPs in the dark universe. Physics of the Dark Universe, 1(1–2), 116–135. https://doi.org/10.1016/j.dark.2012.10.008

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