Article
Article
- Physics
- Elementary particle physics
- Tests of quantum chromodynamics
- Physics
- Theoretical physics
- Tests of quantum chromodynamics
DISCLAIMER: This article is being kept online for historical purposes. Though accurate at last review, it is no longer being updated. The page may contain broken links or outdated information.
Tests of quantum chromodynamics
Article By:
Schmelling, Michael Max-Planck-Institut für Kernphysik, Heidelberg, Germany.
Last reviewed:1999
DOI:https://doi.org/10.1036/1097-8542.YB990760
- Phenomenology
- Accelerator facilities
- Measurements of strong coupling
- Tests of symmetry
- Prospects
- Additional Reading
With the advent of accelerators that could probe the structure of the nucleon, it was soon found that hadrons are composed of quarks, spin-1/2 particles with fractional electric charges ± 1/3 or ±2/3 of the electron charge. In addition, there was strong evidence that quarks carry a new quantum number which can take on three distinct values. This new property was called color, because just as ordinary colors can be combined to yield white, bound states of quarks form colorless hadrons. Three quarks of different color form a baryon; a quark and an antiquark carrying color and anticolor form a meson.
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