@article{014756a9d5e34c13926780898b807502,
title = "Concentrated dark matter: Enhanced small-scale structure from codecaying dark matter",
abstract = "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 enhanced small-scale structure is expected to survive today in the form of compact microhalos and can lead to significant boost factors for indirect-detection experiments, such as FERMI, where dark matter would appear as point sources.",
author = "Dror, {Jeff A.} and Eric Kuflik and Brandon Melcher and Scott Watson",
note = "Funding Information: We thank Avishai Dekel, Cosmin Isle, Adrienne Erickcek, Jonah Kudler-Flam, Michael Geller, and Gustavo Marques Tavares for useful discussions and Yonit Hochberg for comments on the manuscript. S.W. and B.M. were supported in part by NASA Astrophysics Theory Grant No. NNH12ZDA001N and DOE Grant No. DE-FG02-85ER40237. E.K. is supported by the I-CORE Program of the Planning Budgeting Committee (Grant No. 1937/12), the Israel Science Foundation (Grant No. 1111/17), and the Binational Science Foundation (Grant No. 2016153). E.K. and S.W. are thankful for the hospitality of the Aspen Center for Physics, which is supported by NSF Grant No. PHY-1066293. J.A.D. is supported in part by the DOE under Contract No. DE-AC02-05CH11231. Funding Information: We thank Avishai Dekel, Cosmin Isle, Adrienne Erickcek, Jonah Kudler-Flam, Michael Geller, and Gustavo Marques Tavares for useful discussions and Yonit Hochberg for comments on the manuscript. S. W. and B. 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year = "2018",
month = mar,
day = "15",
doi = "10.1103/PhysRevD.97.063524",
language = "English (US)",
volume = "97",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "6",
}