Heavy dark matter and Gravitational waves

Abstract

Domain walls can form after breakdown of a discrete symmetry induced by first-order phase transition, we study the heavy dark matter produced around the temperature of the phase transition that yields the breakdown of a ${\mathbb{Z}}_3$ symmetry. The generated gravitational waves by domain walls decay is found to be able to probed by the Pulsar Timing Arrays, and the future Square Kilometer Array.

8 pages, 4 figures, comments welcome!

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