Comment on "Is Dark Matter with Long-Range Interactions a Solution to All Small-Scale Problems of \Lambda CDM Cosmology?"
High Energy Physics - Phenomenology
2013-11-11 v1 Cosmology and Nongalactic Astrophysics
Abstract
In Phys. Rev. Lett. 109 (2012) 231301, van den Aarssen et al. attempt to solve all the small-scale structure problems in the cold-dark-matter scenario by introducing interaction between the dark-matter particle and an MeV-mass vector boson. In addition, the latter is coupled to ordinary neutrinos, and the neutrino-vector boson coupling constant 10^{-5} < g_nu < 0.1 is required for that purpose. We show that this dark-matter scenario is subject to restrictive constraints from Big Bang Nucleosynthesis.
Keywords
Cite
@article{arxiv.1309.0991,
title = {Comment on "Is Dark Matter with Long-Range Interactions a Solution to All Small-Scale Problems of \Lambda CDM Cosmology?"},
author = {Björn Ahlgren and Tommy Ohlsson and Shun Zhou},
journal= {arXiv preprint arXiv:1309.0991},
year = {2013}
}
Comments
2 pages, 1 figure