The protons will be accelerated in the Large Hadron Collider, an underground
accelerator ring 27 kilometres in circumference at the CERN Laboratory
in Geneva, Switzerland.
The particle beams are steered to collide in the middle of the ATLAS
detector. The debris of the collisions reveal fundamental particle
processes. The energy density in these high energy collisions is similar
to the particle collision energy in the early universe less than a
billionth of a second after the Big Bang.