Calculation of the quark and gluon form factors to three loops in QCD

Gehrmann T, Glover EWN, Huber T, Ikizlerli N, Studerus C (2010)
JHEP 2010(6): 94.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Gehrmann, T.; Glover, E.W.N.; Huber, T.; Ikizlerli, N.; Studerus, CedricUniBi
Abstract / Bemerkung
We describe the calculation of the three-loop QCD corrections to quark and gluon form factors. The relevant three-loop Feynman diagrams are evaluated and the resulting three-loop Feynman integrals are reduced to a small set of known master integrals by using integration-by-parts relations. Our calculation confirms the recent results by Baikov et al.\ for the three-loop form factors. In addition, we derive the subleading O(\e) terms for the fermion-loop type contributions to the three-loop form factors which are required for the extraction of the fermionic contributions to the four-loop quark and gluon collinear anomalous dimensions. The finite parts of the form factors are used to determine the hard matching coefficients for the Drell-Yan process and inclusive Higgs-production in soft-collinear effective theory.
Erscheinungsjahr
2010
Zeitschriftentitel
JHEP
Band
2010
Ausgabe
6
Art.-Nr.
94
ISSN
1029-8479
eISSN
1029-8479
Page URI
https://pub.uni-bielefeld.de/record/2320546

Zitieren

Gehrmann T, Glover EWN, Huber T, Ikizlerli N, Studerus C. Calculation of the quark and gluon form factors to three loops in QCD. JHEP. 2010;2010(6): 94.
Gehrmann, T., Glover, E. W. N., Huber, T., Ikizlerli, N., & Studerus, C. (2010). Calculation of the quark and gluon form factors to three loops in QCD. JHEP, 2010(6), 94. https://doi.org/10.1007/JHEP06(2010)094
Gehrmann, T., Glover, E. W. N., Huber, T., Ikizlerli, N., and Studerus, C. (2010). Calculation of the quark and gluon form factors to three loops in QCD. JHEP 2010:94.
Gehrmann, T., et al., 2010. Calculation of the quark and gluon form factors to three loops in QCD. JHEP, 2010(6): 94.
T. Gehrmann, et al., “Calculation of the quark and gluon form factors to three loops in QCD”, JHEP, vol. 2010, 2010, : 94.
Gehrmann, T., Glover, E.W.N., Huber, T., Ikizlerli, N., Studerus, C.: Calculation of the quark and gluon form factors to three loops in QCD. JHEP. 2010, : 94 (2010).
Gehrmann, T., Glover, E.W.N., Huber, T., Ikizlerli, N., and Studerus, Cedric. “Calculation of the quark and gluon form factors to three loops in QCD”. JHEP 2010.6 (2010): 94.

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arXiv: 1004.3653

Inspire: 852545

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