Infrared Finiteness in Yang-Mills Theories
- 5 April 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 36 (14) , 768-772
- https://doi.org/10.1103/physrevlett.36.768
Abstract
The infrared divergences of renormalizable theories with coupled massless fields (in particular the Yang-Mills theory) are shown to cancel for transition probabilities corresponding to finite-energy-resolution detectors, just as in quantum electrodynamics. This result is established through lowest nontrivial order in perturbation theory for the detection of massive muons in a quantum electrodynamic theory containing massless electrons or the detection of massive quarks in a Yang-Mills theory.Keywords
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