publication . Article . Other literature type . 2018

Concentrated dark matter: Enhanced small-scale structure from codecaying dark matter

Dror, Jeff A.; Kuflik, Eric; Melcher, Brandon; Watson, Scott;
Open Access
  • Published: 22 Mar 2018
  • Publisher: eScholarship, University of California
  • Country: United States
Abstract
Author(s): Dror, Jeff A; Kuflik, Eric; Melcher, Brandon; Watson, Scott | Abstract: © 2018 authors. Published by the American Physical Society. We study the cosmological consequences of codecaying dark matter - a recently proposed mechanism for depleting the density of dark matter through the decay of nearly degenerate particles. A generic prediction of this framework is an early dark matter dominated phase in the history of the Universe, that results in the enhanced growth of dark matter perturbations on small scales. We compute the duration of the early matter dominated phase and show that the perturbations are robust against washout from free streaming. The en...
Subjects
free text keywords: hep-ph, astro-ph.CO, hep-th, Physics and Astronomy (miscellaneous), Hot dark matter, Halo, Fermi Gamma-ray Space Telescope, Astrophysics, Free streaming, Particle physics, Universe, media_common.quotation_subject, media_common, Warm dark matter, Physics, Dark matter, Mixed dark matter
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publication . Article . Other literature type . 2018

Concentrated dark matter: Enhanced small-scale structure from codecaying dark matter

Dror, Jeff A.; Kuflik, Eric; Melcher, Brandon; Watson, Scott;