Quigg, Chris Theoretical Physics Department, Fermi National Accelerator Laboratory, Batavia, Illinois.
- Gauge symmetry
- Experimental evidence
- Other implications
- Links to Primary Literature
- Additional Readings
The hypothetical force particles believed to bind quarks into strongly interacting particles. Theoretical models in which the strong interactions of quarks are mediated by gluons have been successful in predicting, interpreting, and explaining many phenomena in particle physics, but free gluons remain undetected in experiments (as do free quarks). According to prevailing opinion, an individual gluon cannot be isolated.
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