QCD (Quantum Chromodynamics) Computations
Definition
Quantum Chromodynamics (QCD) is the prime and generally accepted theory of the strong interactions between quarks and gluons. In QCD, there appear intrinsically nonperturbative effects such as the confinement of quarks, chiral symmetry breaking, and topology. These effects can be analyzed by formulating the theory on a four-dimensional space-time lattice and solving it by large-scale numerical simulations. An overview of the present simulation landscape, a physical example and a description of simulation and parallelization aspects of QCD on the lattice is given.
Discussion
Introduction
When experiments at large accelerators such as HERA at DESY and LEP and LHC at CERN are performed, in the detectors one observes hadrons such as pions, protons, or neutrons. On the other hand, from the particular signature of these particles as seen in the detectors, it is known that the hadrons are not fundamental particles but that they must have an inner structure.
It is strongly believed...
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