  We examine the effect of large extra dimensions on black hole seeded vacuum
decay using the Randall-Sundrum model as a prototype for warped extra
dimensions. We model the braneworld black hole by a tidal solution, and solve
the Higgs equations of motion for the instanton on the brane. Remarkably, the
action of the static instanton can be shown to be the difference in the bulk
areas of the seed and remnant black holes, and we estimate these areas assuming
the black holes are small compared to the bulk AdS radius. Comparing to the
Hawking evaporation rate shows that small black hole seeds preferentially
catalyse vacuum decay, thus extending our previous results to higher
dimensional braneworld scenarios. The parameter ranges do not allow for
Standard Model Higgs decay from collider black holes, but they can be relevant
for cosmic ray collisions.
