Abstract
The gravitational wave (GW) background produced at the chiral phase transition in a conformal extension of the standard model is studied. We compute the bounce solution by the iteration method and find that the transition’s inverse duration β normalized to the Hubble parameter H is β/H ≳ 103 which implies that the sound wave period τsw as an active GW source is shorter than 1/H. Using the factor τ sw H as the reduction factor for the sound wave contribution to the total GW spectrum, we evaluate the signal-to-noise ratio for the future space-based GW interferometer experiments. In the optimistic case we find that the GW signal could be detected by Big Bang Observer.
Published Version
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