The 2023 Shanghai Symposium on Particle Physics and Cosmology: Phase Transitions, Gravitational Waves, and Colliders (SPCS 2023)

A new approach to rescue the trapped vacuum

23 Sept 2023, 20:40

20m

Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall (Tsung-Dao Lee Institute)

Parallel 1

Speaker

Dr Dongdong Wei (Sun Yat-sen University)

Description

The first-order phase transition is one of the promising scenarios as it can explain the observed matter-antimatter asymmetry of the early universe. In most cases, the transition proceeds through the nucleation of bubbles of the true vacuum. If the nucleation rate is highly suppressed, then vacuum trapping may occur so that the transition ceases. In this work, we will discuss a new approach where the trapped vacuum can rescued to realize the EW symmetry breaking and also produce the gravitational wave signals.

Presentation materials

2023_Shanghai_TrapVac-DW.pdf