Publication: Renormalization of twist-two operators in covariant gauge to three loops in QCD
Renormalization of twist-two operators in covariant gauge to three loops in QCD
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Gehrmann, T., von Manteuffel, A., & Yang, T.-Z. (2023). Renormalization of twist-two operators in covariant gauge to three loops in QCD. Journal of High Energy Physics, 2023(4), 41. https://doi.org/10.1007/jhep04(2023)041
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Abstract The leading short-distance contributions to hadronic hard-scattering cross sections in the operator product expansion are described by twist-two quark and gluon operators. The anomalous dimensions of these operators determine the splitting functions that govern the scale evolution of parton distribution functions. In massless QCD, these anomalous dimensions can be determined through the calculation of off-shell operator matrix elements, typically performed in a covariant gauge, where the physical operator
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- von Manteuffel, Andreas
- Yang, Tong-Zhi
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Gehrmann, T., von Manteuffel, A., & Yang, T.-Z. (2023). Renormalization of twist-two operators in covariant gauge to three loops in QCD. Journal of High Energy Physics, 2023(4), 41. https://doi.org/10.1007/jhep04(2023)041
