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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-41359

Gehrmann, T; Glover, E W N; Huber, T; Ikizlerli, N; Studerus, C (2010). The quark and gluon form factors to three loops in QCD through to O(eps^2). Journal of High Energy Physics, (11):012.

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Abstract

We give explicit formulae for the mathcal{O}(ɛ) and mathcal{O}left( {{ɛ^2}} right) contributions to the unrenormalised three loop QCD corrections to quark and gluon form factors. These contributions have at most transcendentality weight eight. The mathcal{O}(ɛ) terms of the three-loop form factors are required for the extraction of the four-loop quark and gluon collinear anomalous dimensions. The mathcal{O}left( {{ɛ^2}} right) terms represent an irreducible contribution to the finite part of the form factors at four-loops. For the sake of completeness, we also give the contributions to the one and two loop form factors to the same transcendentality weight eight.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
DDC:530 Physics
Language:English
Date:November 2010
Deposited On:04 Jan 2011 16:13
Last Modified:05 Jun 2014 09:20
Publisher:Springer
ISSN:1029-8479
Publisher DOI:10.1007/JHEP11(2010)102
Related URLs:http://arxiv.org/abs/1010.4478

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