
A few days ago I went to the movie Angels and Demons and that movie shows a little bit of the function of the “large hadron collider”.
The Large Hadron Collider (LHC) is the world’s largest and highest-energy particle accelerator, intended to collide opposing particle beams.
The Large Hadron Collider was built by the European Organization for Nuclear Research (CERN) with the intention of testing various predictions of high-energy physics, including the existence of the hypothesized ‘Higgs boson.’ It lies in a tunnel 27 kilometres (17 mi) in circumference, as much as 175 metres (570 ft) beneath the Franco-Swiss border near Geneva, Switzerland.

It is funded by and built in collaboration with over 10,000 scientists and engineers from over 100 countries as well as hundreds of universities and laboratories.
Experimentally verifying the existence of the Higgs boson, the last unobserved particle, would shed light on how particles are thought to acquire their mass.
Expected results:
Once the supercollider is up and running, scientists estimate that a single Higgs boson may be produced every few hours.

At this rate, it may take up to three years to collect enough data to discover the Higgs boson unambiguously.

Angels and Demons is a very good book and film.
A few months ago, scientists start that experiment, but some hours later, it broke, and now they are reparing it.