Journal article
Analytic four-loop anomalous dimensions in massless QCD from form factors
- Abstract:
- We calculate the complete quark and gluon cusp anomalous dimensions in four-loop massless QCD analytically from first principles. In addition, we determine the complete matter dependence of the quark and gluon collinear anomalous dimensions. Our approach is to Laurent expand four-loop quark and gluon form factors in the parameter of dimensional regularization. We employ finite field and syzygy techniques to reduce the relevant Feynman integrals to a basis of finite integrals, and subsequently evaluate the basis integrals directly from their standard parametric representations.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 359.9KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevLett.124.162001
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review Letters More from this journal
- Volume:
- 124
- Issue:
- 16
- Article number:
- 162001
- Publication date:
- 2020-04-24
- Acceptance date:
- 2020-04-01
- DOI:
- EISSN:
-
1079-7114
- ISSN:
-
0031-9007
Terms of use
- Copyright holder:
- von Manteuffel et al.
- Copyright date:
- 2020
- Rights statement:
- Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3 .
- Licence:
- CC Attribution (CC BY)
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