Higgs Vacuum Decay in a Braneworld

Understand

We examine the effect of large extra dimensions on vacuum decay in the Randall-Sundrum (RS) braneworld paradigm.

• We assume the scalar field is confined to the brane, and compute the probability for forming an "anti de Sitter" (AdS) bubble inside a critical flat RS brane.
• We present the first full numerical solutions for the brane instanton considering two test potentials for the scalar field.
• We explore the geometrical impact of thin and thick bubble walls, and compute the instanton action in a range of cases.