The term hadron refers to subatomic composite particles composed of quarks held together by the strong force (analogous to the way that atoms and molecules are held together by the electromagnetic force). The best-known … See more

The LHC first went operational on 10 September 2008, but initial testing was delayed for 14 months from 19 September 2008 to 20 November 2009, following a magnet quench See more

"High-luminosity" upgrade
After some years of running, any particle physics experiment typically begins to suffer from See more

Many physicists hope that the Large Hadron Collider will help answer some of the fundamental open questions in physics, which concern the … See more

The collider is contained in a circular tunnel, with a circumference of 26.7 kilometres (16.6 mi), at a depth ranging from 50 to 175 metres (164 to 574 ft) underground. The variation in depth was deliberate, to reduce the amount of tunnel that lies under the See more

An initial focus of research was to investigate the possible existence of the Higgs boson, a key part of the Standard Model See more

The experiments at the Large Hadron Collider sparked fears that the particle collisions might produce doomsday phenomena, … See more