Gravitational Waves from a Dark Phase Transition.

  title={Gravitational Waves from a Dark Phase Transition.},
  author={Pedro Schwaller},
  journal={Physical review letters},
  volume={115 18},
  • P. Schwaller
  • Published 27 April 2015
  • Physics
  • Physical review letters
In this work, we show that a large class of models with a composite dark sector undergo a strong first order phase transition in the early Universe, which could lead to a detectable gravitational wave signal. We summarize the basic conditions for a strong first order phase transition for SU(N) dark sectors with n_{f} flavors, calculate the gravitational wave spectrum and show that, depending on the dark confinement scale, it can be detected at eLISA or in pulsar timing array experiments. The… 

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