LISA as a probe for particle physics: electroweak scale tests in synergy with ground-based experiments

Understand

We forecast the prospective of detection for a stochastic gravitational wave background sourced by cosmological first-order phase transitions.

• We focus on first-order phase transitions with negligible plasma effects, and consider the experimental infrastructures built by the end of the LISA mission.
• We make manifest the synergy among LISA, pulsar time array experiments, and ground-based interferometers.
• For phase transitions above the TeV scale or below the electroweak scale, LISA can detect the corresponding gravitational wave signal together with Einstein Telescope, SKA or even aLIGO-aVIRGO-KAGRA.