The LHC experiments

The Large Hadron Collider (LHC) is a particle acclerator at CERN on the French/Swiss border. It was built to collide particle together and investigate the building blocks of the universe. There are 4 main experiments using the LHC and GridPP supports them all.

They are:

  • ALICE
    ALICE is the acronym for A Large Ion Collider Experiment, one of the largest experiments in the world devoted to research in the physics of matter at an infinitely small scale. Hosted at CERN, the European Laboratory for Nuclear Research, this project involves an international collaboration of more than 1000 physicists, engineers and technicians, including around 200 graduate students, from 105 physics institutes in 30 countries across the world. The ALICE Experiment is going in search of answers to fundamental questions about our universe.
  • ATLAS
    ATLAS is a general-purpose particle physics experiment which studies topics including the origin of mass, the processes that allowed an excess of matter over antimatter in the universe, evidence for Supersymmetry and other new physics, including even micro black hole production. The experiment was constructed by some 2000 scientists in over 100 institutes in 6 continents.
  • CMS
    The Compact Muon Solenoid (CMS) experiment is a General Purpose Detectors for the Large Hadron Collider (LHC) at CERN, Geneva, Switzerland. The detector design goals were to have a good muon tracking system with redundant layers, an electromagnetic calorimeter with excellent energy resolution (homogeneous crystals), high quality central tracking detector and a hermetic hadron calorimeter with good energy resolution.
  • LHCb
    LHCb is a particle physics experiment that studis the subtle differences between matter and antimatter. The design and construction of the experiment is was undertaken by 500 scientists from 48 institutes in 14 countries around the world. Over 1000 million short lived particles of matter and antimatter called B and B-bar mesons (which contain the b quark) are studied at LHCb each year.


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