Understand
By exploring the scattering of specific helicity states in quark-gluon scattering at tree level we show explicitly that the t-channel pole can be described exactly as a contraction of two local currents.
- Furthermore, we demonstrate that out of eight non-zero helicity possibilities, only two suppressed channels have contributions that are not pure, factorised t-channel poles.
- We thereby extract a gauge-invariant definition for the t-channel current generated by the scattering of a gluon.
- This offers a slight improvement in the description of gluon scattering in the framework of arXiv:0908.2786 for the prediction of n-jet rates at hadron colliders.
Built on
V. S. Fadin, E. A. Kuraev, and L. N. Lipatov, On the Pomeranchuk singularity in asymptotically free theories
1975
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E. A. Kuraev, L. N. Lipatov, and V. S. Fadin, Multi - Reggeon processes in the Yang-Mills theory
1976
Earlier work this paper cites.
E. A. Kuraev, L. N. Lipatov, and V. S. Fadin, The Pomeranchuk singularity in nonabelian gauge theories
1977
Earlier work this paper cites.
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