Heavy dark matter and gravitational waves

We study the heavy dark matter produced around the temperature of the phase transition. Meanwhile domain walls can be formed after the breakdown of a Z3 discrete symmetry induced by the first-order phase transition. The generated gravitational waves by domain wall decay are found to be able to probed by the pulsar timing arrays, and the future square kilometer array.

Automated summary

The study focuses on heavy dark matter produced around the temperature of the phase transition and the formation of domain walls. It is discovered that the gravitational waves generated by domain wall decay can be probed by pulsar timing arrays and the future square kilometer array.