Discussion of the paper "Kerr Black Holes as Particle Accelerators to Arbitrarily High Energy" by M. Bañados, J. Silk and S. M. West

Our group coordinated the "Numerical Relativity and High Energy Physics" IRSES network (2012-2015). Here is a list of the global network meetings organized:

First Meeting:
9-13 July 2012, Aveiro, Portugal

Second Meeting:
11-14 March 2013, Lisbon, Portugal

Third Meeting:
6-10 January 2014, Mississippi, USA

Fourth Meeting:
7-10 July 2015, Rome, Italy

Fifth Meeting:
28 Sep-2 Oct 2015, Belém, Brazil