A Hidden Microwave Background? -- signatures of photon-WISP oscillations in the CMB
arXiv:1002.0447
Abstract
The existence and cosmological signatures of a relic background of very weakly interacting sub-eV particles (WISPs), produced by photon-WISP oscillations is reviewed.
arXiv comment4 pages, to appear in the Proceedings of the 5th Patras Workshop on Axions, WIMPs and WISPs
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