The birth of the Web | CERN
WEBIn 2013, CERN launched a project to restore this first ever website: info.cern.ch. On 30 April 1993, CERN put the World Wide Web software in the public domain. Later, CERN made a release available with an open licence, a more sure way to maximise its dissemination. These actions allowed the web to flourish.
The Large Hadron Collider - CERN
WEBThe Large Hadron Collider (LHC) is the world’s largest and most powerful particle accelerator.It first started up on 10 September 2008, and remains the latest addition to CERN’s accelerator complex.The LHC consists of a 27-kilometre ring of superconducting magnets with a number of accelerating structures to boost the energy of the particles …
The Standard Model - CERN
WEBThe Standard Model. The Standard Model explains how the basic building blocks of matter interact, governed by four fundamental forces. The theories and discoveries of thousands of physicists since the 1930s have resulted in a remarkable insight into the fundamental structure of matter: everything in the universe is found to be made from a few ...
About - CERN
WEBWhat is the LHC? The Large Hadron Collider (LHC) is the world’s largest and most powerful particle accelerator.It first started up on 10 September 2008, and remains the latest addition to CERN’s accelerator complex.The LHC consists of a 27-kilometre ring of superconducting magnets with a number of accelerating structures to boost the energy of the particles …
The Higgs boson - CERN
WEBOn 4 July 2012, the ATLAS and CMS collaborations announced the discovery of a new particle to a packed auditorium at CERN. This particle had no electrical charge, it was short-lived and it decayed in ways that the Higgs boson should, according to theory. To confirm if it really was the Higgs boson, physicists needed to check its “spin ...
Home | CERN
WEBSep 11, 2010 · CERN, the European Organization for Nuclear Research, is one of the world’s largest and most respected centres for scientific research. Its business is fundamental physics, finding out what the Universe is made of and how it works.
Antimatter - CERN
WEBAntimatter. In 1928, British physicist Paul Dirac wrote down an equation that combined quantum theory and special relativity to describe the behaviour of an electron moving at a relativistic speed. The equation – which won Dirac the Nobel Prize in 1933 – posed a problem: just as the equation x 2 = 4 can have two possible solutions (x = 2 or ...
Accelerators - CERN
WEBAccelerators use electromagnetic fields to accelerate and steer particles. Radiofrequency cavities boost the particle beams, while magnets focus the beams and bend their trajectory.. In a circular accelerator, the particles repeat the same circuit for as long as necessary, getting an energy boost at each turn.
ATLAS - CERN
WEBAt 46 m long, 25 m high and 25 m wide, the 7000-tonne ATLAS detector is the largest volume particle detector ever constructed. It sits in a cavern 100 m below ground near the main CERN site, close to the village of Meyrin in Switzerland. More than 5500 scientists from 245 institutes in 42 countries work on the ATLAS experiment (March 2022).
How did we discover the Higgs boson? - CERN
WEBSo it is not possible to observe it directly. The particles from the boson’s decay are the only traces that it leaves behind. These traces have to be detected and precisely measured by particle detectors. Once the decay products have been detected, the next step is to determine whether we can say that the Higgs boson was produced.