The upcoming era of gravitational wave (GW) cosmology, enabled by a broad range of next-generation detectors, demands a coordinated theoretical effort and a robust theory-to-data pipeline to fully exploit its discovery potential. The workshop “The Dawn of Gravitational Wave Cosmology”, held at Benasque (Spain) from April 27th to May 17th, brought together experts across diverse GW probes to develop a multi-messenger strategy, with a key focus on cross-correlations to disentangle primordial signals from astrophysical backgrounds.
The workshop featured a contribution of the LIP-Phenomenology member Marco Finetti. He presented PT2GWFinder, a Mathematica-based tool developed to streamline the analysis of first-order cosmological phase transitions and their associated gravitational wave signals within Beyond the Standard Model (BSM) scenarios.
PT2GWFinder simplifies the computation of key phase transition parameters—such as nucleation and percolation temperatures—by automating tasks like phase tracing, bounce action fitting, and gravitational wave spectrum derivation, using the polygonal bounce method via FindBounce. It also emphasizes user-friendliness and full automation while maintaining compatibility with dimensional reduction frameworks like DRalgo.
For more information, see https://benasque.org/2025gwc/