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arXiv · 2208.00937

Power Corrections to Electroweak Boson Production from Threshold Resummation

George Sterman·Werner Vogelsang
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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.

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George Sterman, Werner Vogelsang. 2022-08-01. Power Corrections to Electroweak Boson Production from Threshold Resummation. https://doi.org/10.1103/physrevd.107.014009

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