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Restricted conformal invariance in QCD and its predictive power for virtual two-photon processes
The conformal algebra provides powerful constraints, which guarantee that renormalized conformally covariant operators exist in the hypothetical conformal limit of the theory, where the $\beta$-function vanishes. Thus, in this limit also the conformally covariant operator product expansion on the li...
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| Lenguaje: | eng |
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1997
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| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.58.054005 http://cds.cern.ch/record/324899 |