Gravitational Wave Signals in a Promising Realization of SO(10) Unification

by Dr Liliana Esther Velasco Sevilla (CQUeST)

Wednesday 2 Jul 2025, 15:30 → 17:30 Asia/Seoul

B447-1

We study gravitational wave signals in a non-supersymmetric SO(10) grand unified model with a two-step symmetry breaking to the Standard Model. We derive the one-loop effective potential for the first breaking step and show it can trigger a first-order phase transition producing gravitational waves. We also estimate the background from the primordial plasma. While current detectors lack the sensitivity to observe these signals, future concepts may reach the required range. The second symmetry breaking can also generate gravitational waves, potentially detectable by current or upcoming experiments. We are entering an era in which some of the most remarkable predictions of grand unified theories may finally be put to the test. The work is based on  2506.07182 and upcoming work.