Power Corrections to Electroweak Boson Production from Threshold Resummation

Abstract

We study the power corrections for electroweak boson production that are implied by threshold resummation, which we have extended to massive particles produced at measured transverse momentum, $p_T$, and rapidity. Power corrections in the resulting expressions arise from ambiguities in the low-scale behavior of the perturbative running coupling. Arguing for the relevance of the eikonal approximation, we show that such power corrections begin at order $1/p_T^2$ in full QCD, consistent with fixed-order, massive-gluon analysis. For large-$N$ Mellin moments, the leading behavior is $N^2/p_T^2$, which exponentiates along with the logarithms of threshold resummation.

35 pages

References in corpus (8)

• Dynamical Threshold Enhancement and Resummation in Drell-Yan Production
• A new critical study of photon production in hadronic collisions
• Designing Gapped Soft Functions for Jet Production
• Webs in multiparton scattering using the replica trick
• Universality of next-to-leading power threshold effects for colourless final states in hadronic collisions
• Diagrammatic Exponentiation for Products of Wilson Lines
• $C$-parameter hadronisation in the symmetric 3-jet limit and impact on ${\alpha }_s$ fits
• Building blocks of Cwebs in multiparton scattering amplitudes

Cited by in corpus (2)

• Soft gluon resummation for gluon fusion $ZH$ production
• Next to Soft Threshold Resummation for $VH$ Production