Anthropic Origin of the Neutrino Mass from Cooling Failure

@inproceedings{Bousso2015AnthropicOO,
  title={Anthropic Origin of the Neutrino Mass from Cooling Failure},
  author={Raphael Bousso and Dan Mainemer Katz and Claire Zukowski},
  year={2015}
}
The sum of active neutrino masses is well constrained, $58$ meV $\leq m_\nu \lesssim 0.23$ eV, but the origin of this scale is not well understood. Here we investigate the possibility that it arises by environmental selection in a large landscape of vacua. Earlier work had noted the detrimental effects of neutrinos on large scale structure. However, using Boltzmann codes to compute the smoothed density contrast on Mpc scales, we find that dark matter halos form abundantly for $m_\nu \gtrsim 10… CONTINUE READING

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