Journal
PHYSICAL REVIEW D
Volume 99, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.99.094014
Keywords
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Funding
- HPCC team
- National Science Foundation [1719863]
- European Research Council [647356]
- PRISMA excellence cluster
- European Research Council (ERC) [647356] Funding Source: European Research Council (ERC)
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We calculate the four-loop massless QCD corrections with two closed quark lines to quark and gluon form factors. The results for the gluon form factor and the singlet part of the quark form factor are given for the first time. From our analytic expressions for the form factors, we determine the corresponding cusp anomalous dimensions. The relevant Feynman integrals are obtained with novel integral reduction techniques and direct integration methods.
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