Isocurvature forecast in the anthropic axion window
Hamann, Jan and Hannestad, Steen and Raffelt, Georg G. and Wong, Yvonne Y. Y.
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Abstract
We explore the cosmological sensitivity to the amplitude of isocurvature fluctuations that would be caused by axions in the _s15anthropic window_s15 where the axion decay constant f_a >> 10^12 GeV and the initial misalignment angle Theta_i
