Subleading-power N-jet operators and the LBK amplitude in SCET

Abstract

We construct a complete and minimal basis of subleading-power N-jet operators in position-space soft-collinear effective theory (SCET) and discuss how the Low-Burnett-Kroll amplitude is recovered in this framework. We begin a systematic investigation of the anomalous dimension of next-to-leading power N-jet operators in view of resummation of logarithmically enhanced terms in partonic cross sections and discuss the explicit result at the one-loop order for fermion-number two N-jet operators at the second order in the power expansion parameter of SCET.

arXiv comment11 pages, Proceedings of the 13th International Symposium on Radiative Corrections (RADCOR 2017), based in part on Ref.[1] (1712.04416) + additional discussion

References in corpus (6)

• Infrared singularities of scattering amplitudes in perturbative QCD
• Multipole-expanded soft-collinear effective theory with non-abelian gauge symmetry
• Reparameterization Invariance for Collinear Operators
• Three-loop corrections to the soft anomalous dimension in multi-leg scattering
• Subleading Power Corrections for N-Jettiness Subtractions
• Anomalous dimension of subleading-power $N$-jet operators II

Cited by in corpus (3)

• Anomalous dimension of subleading-power $N$-jet operators II
• On next-to-leading power threshold corrections in Drell-Yan production at N${}^3$LO
• Refactorisation in subleading $\bar{B}\to X_s\gamma$