Journal
PHYSICS LETTERS B
Volume 727, Issue 4-5, Pages 452-455Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2013.10.063
Keywords
QCD; NNNLO computations
Funding
- Swiss National Science Foundation (SNF) [200020-138206]
- European Commission through the ERC [IterQCD]
- LHCPhenoNet Initial Training Network [PITN-GA-2010-264564]
- National Science Foundation NSF [PHY11-25915]
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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. (C) 2013 Published by Elsevier B.V.
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