The term hadron refers to subatomic composite particles composed of quarks held together by the strong force (as atoms and molecules are held together by the electromagnetic force). The best-known hadrons are the

 ...

Many physicists hope that the Large Hadron Collider will help answer some of the fundamental open questions in physics, which concern the basic laws governing the interactions and forces among the elementary objects, the deep structure of space and time, and in

 ...

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

 ...

The LHC first went live on 10 September 2008, but initial testing was delayed for 14 months from 19 September 2008 to 20 November 2009, following

 ...

After some years of running, any particle physics experiment typically begins to suffer from diminishing returns: as the key results reachable by the device begin to be completed, later years of operation discover proportionately less than earlier years. A common

 ...

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

 ...

An initial focus of research was to investigate the possible existence of the Higgs boson, a key part of the Standard Modelof physics which was predicted by theory, but had not yet been observed before due to its high mass and elusive nature. CERN scientists

 ...