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2013

The two-loop soft current in dimensional regularization

Duhr, Claude, Gehrmann, Thomas

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Understand

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.

The two-loop soft current in dimensional regularization · Around

Built on

S. Catani, M. Grazzini, Nucl. Phys. B 591
2000
Earlier work this paper cites.
T. Gehrmann, E. Remiddi, Nucl. Phys. B 580
2000
Earlier work this paper cites.
T. Gehrmann, E. Remiddi, Nucl. Phys. B 601
2001
Earlier work this paper cites.
L.W. Garland, T. Gehrmann, E.W.N. Glover, A. Koukoutsakis, E. Remiddi, Nucl. Phys. B 642
2002
Earlier work this paper cites.

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Then

M. Beneke, V.A. Smirnov, Nucl. Phys. B522
2011
Later among the works it cites.
T. Gehrmann, M. Jaquier, E.W.N. Glover, A. Koukoutsakis, JHEP 1202
2012
Later among the works it cites.
P.A. Baikov, K.G. Chetyrkin, A.V. Smirnov, V.A. Smirnov, M. Steinhauser, Phys. Rev. Lett. 102
Original
2013
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