Heavy-quark QCD vacuum polarisation function: analytical results at four loops
نویسندگان
چکیده
Fully analytical results for the first two moments of the heavy-quark vacuum polarisation function at four loops in quantum chromo-dynamics are presented. PACS: 12.38.-t, 12.38.Bx, 13.66.Bc, 13.85.Lg ∗Permanent address: Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980, Dubna (Moscow region), Russia.
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