In the final analysis, the formation of a black hole is the result of having sufficient energy density to warp the local hyperdimensional space-time matrix enough to produce a dimensional fissure (the affects of which we perceive as a hypergravity well).
Ultra-high energy particle accelerators can produce extremely high energy particle interactions (with potentially informative and interesting results) especially if you're able to slam heavy ions together and/or intersect high energy matter and anti-matter particle beams, but the interaction won't produce the minimum energy density necessary to result in enough spatial warping to even produce a quantum singularity.
Ultra-high energy particle accelerators can produce extremely high energy particle interactions (with potentially informative and interesting results) especially if you're able to slam heavy ions together and/or intersect high energy matter and anti-matter particle beams, but the interaction won't produce the minimum energy density necessary to result in enough spatial warping to even produce a quantum singularity.
