Gravitational Waves from Hidden QCD Phase Transition
Gravitational Waves from Hidden QCD Phase Transition
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DOI:
10.1103/physrevd.96.075045
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发表时间:
2017-09
影响因子:
5
通讯作者:
M. Aoki;Hiromitsu Goto;J. Kubo
中科院分区:
文献类型:
--
作者:
M. Aoki;Hiromitsu Goto;J. Kubo
Drastic changes in the early universe such as first-order phase transition can produce a stochastic gravitational wave (GW) background. We investigate the testability of a scale invariant extension of the standard model (SM) using the GW background produced by the chiral phase transition in a strongly interacting QCD-like hidden sector, which, via a SM singlet real scalar mediator, triggers the electroweak phase transition. Using the Nambu--Jona-Lasinio method in a mean field approximation we estimate the GW signal and find that it can be tested by future space based detectors.