Black-hole head-on collisions

Exploration of head-on collisions in higher-dimensional spacetimes up to about 10 dimensions through numerical investigations using the framework developed in the previous deveriable. Comparison of the numerical results with predictions from shock-wave and point-particle calculations. This study will first explore the equal-mass case with zero initial velocity. Non-vanishing boosts and unequal-mass systems will be explored subsequently to identify the maximum possible loss of kinetic energy in the form of gravitational radiation in ultra-relativistic head-on collisions.