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The two-loop soft current in dimensional regularization


Duhr, Claude; Gehrmann, Thomas (2013). The two-loop soft current in dimensional regularization. Physics Letters B, 727(4-5):452-455.

Abstract

The soft current describes the factorization behavior of quantum chromodynamics (QCD) scattering amplitudes in the limit of vanishing energy of one of the external partons. It is process-independent and can be expanded in a perturbative series in the coupling constant. To all orders in the dimensional regularization parameter, we compute the two-loop correction to the soft current for processes involving two hard partons.

Abstract

The soft current describes the factorization behavior of quantum chromodynamics (QCD) scattering amplitudes in the limit of vanishing energy of one of the external partons. It is process-independent and can be expanded in a perturbative series in the coupling constant. To all orders in the dimensional regularization parameter, we compute the two-loop correction to the soft current for processes involving two hard partons.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:December 2013
Deposited On:06 Feb 2014 08:59
Last Modified:05 Apr 2016 17:29
Publisher:Elsevier
ISSN:0370-2693
Publisher DOI:https://doi.org/10.1016/j.physletb.2013.10.063

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