Gravitational Wave Signals from Multiple Hidden Sectors

Understand

We explore the possibility of detecting gravitational waves generated by first order phase transitions in multiple dark sectors.

• Nnaturalness is taken as a sample model that features multiple additional sectors, many of which undergo phase transitions that produce gravitational waves.
• We examine the cosmological history of this framework and determine the gravitational wave profiles generated.
• These profiles are checked against projections of next-generation gravitational wave experiments, demonstrating that multiple hidden sectors can indeed produce unique gravitational wave signatures that will be probed by these future experiments.