Gravitational Waves from Dark Yang-Mills Sectors
Abstract
Dark Yang-Mills sectors, which are ubiquitous in the string landscape, may be reheated above their critical temperature and subsequently go through a confining first-order phase transition that produces stochastic gravitational waves in the early universe. Taking into account constraints from lattice and from Yang-Mills (center and Weyl) symmetries, we use a phenomenological model to construct an effective potential of the semi quark-gluon plasma phase, from which we compute the gravitational wave signal produced during confinement for numerous gauge groups. The signal is maximized when the dark sector dominates the energy density of the universe at the time of the phase transition. In that case, we find that it is within reach of the next-to-next generation of experiments (BBO, DECIGO) for a range of dark confinement scales near the weak scale.
Cite
@article{arxiv.2012.04071,
title = {Gravitational Waves from Dark Yang-Mills Sectors},
author = {James Halverson and Cody Long and Anindita Maiti and Brent Nelson and Gustavo Salinas},
journal= {arXiv preprint arXiv:2012.04071},
year = {2021}
}