There is no experimental evidence of primordial black holes and the theoretical evidence is tenuous (mostly based on "semiclassical" reasoning). In addition, a quark-gluon plasma has already been produced in heavy ion collisions in other experimental facilities and we're still here. We have met the enemy, and he is us — Pogo
Although I'm not sure if sun winds really have LHC energies, cosmic rays can have up to 10^7 times the energy of the LHC as reported by the Auger collaboration. So whatever is created at the LHC, it was already created by cosmic rays.
If it is created, and that would likely require rather big extra dimensions, Hawking radiation will likely destroy it in about 10^(-40) seconds. The nice thing about is is (a) it would immediately prove really fancy new physics, and (b) it is very easy to detect, as a lot of muons (heavy electrons) come out of it. Der Amerikaner ist die Orchidee unter den MenschenVolker Pispers
