Speaker
Mr
Joshua Foster
(University of Michigan)
Description
Cosmological inflation generates primordial density perturbations which are scale-free on observable scales but that may be considerably larger on smaller scales. The boosted power spectrum at small scales leads to increased formation of dense, small-scale structure at early times, enhancing the present-day annihilation rate of annihilating dark matter. In this work, we show how to compute the impact of a power spectrum predicted by an inflationary model on WIMP indirect detection, leading to constraints on the WIMP-inflation parameter space within the context of axion inflation and establishing a procedure for similar future inquiries.
Primary author
Mr
Joshua Foster
(University of Michigan)
Co-authors
Prof.
Benjamin Safdi
(University of Michigan)
Ms
Valerie Domcke
(DESY)
