Quick Search:

uzh logo
Browse by:
bullet
bullet
bullet
bullet

Zurich Open Repository and Archive 

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-41363

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. Journal of High Energy Physics, (6):94.

[img]
Preview
Accepted Version
PDF (Accepted manuscript, Version 4)
383kB
[img]
Preview
PDF (Verlags-PDF)
1MB
[img]
Preview
Accepted Version
PDF (Accepted manuscript, Version 3)
382kB
[img]
Preview
Accepted Version
PDF (Accepted manuscript, Version 2)
382kB
[img]
Preview
Accepted Version
PDF (Accepted manuscript, Version 1)
377kB

Abstract

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 mathcal{O}left( \varepsilon right) 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.

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
DDC:530 Physics
Language:English
Date:2010
Deposited On:04 Jan 2011 15:41
Last Modified:05 Jul 2014 15:02
Publisher:Springer
ISSN:1029-8479
Publisher DOI:10.1007/JHEP06(2010)094
Related URLs:http://arxiv.org/abs/1004.3653
Citations:Web of Science®. Times Cited: 19
Google Scholar™
Scopus®. Citation Count: 22

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page