4.4 Article

The five-loop Beta function for a general gauge group and anomalous dimensions beyond Feynman gauge

期刊

JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 10, 页码 -

出版社

SPRINGER
DOI: 10.1007/JHEP10(2017)166

关键词

Perturbative QCD; Renormalization Group

资金

  1. DFG [GRK 881, SCHR 993/2]
  2. European Union COFUND/Durham Junior Research Fellowship under EU grant [267209]
  3. EU Network HIGGSTOOLS [PITN-GA-2012-316704]
  4. FONDECYT project [1151281]
  5. UBB project [GI-172309/C]
  6. STFC [ST/G000905/1] Funding Source: UKRI
  7. Science and Technology Facilities Council [ST/G000905/1] Funding Source: researchfish

向作者/读者索取更多资源

We focus on a non-abelian gauge field coupled to a single (but general) representation of a family of N-f fermions. By using the same machinery that had allowed us to evaluate the sub-leading large-N-f term of the five-loop Beta function earlier, we here report on a confirmation of the all-N-f result that has in the meantime been published by another group. Furthermore, in order to push forward the 5-loop renormalization program regarding gauge parameter dependence, we present the linear terms of the complete set of anomalous dimensions, in an expansion in the covariant gauge parameter around the Feynman gauge.

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