Power Corrections to Electroweak Boson Production from Threshold Resummation
| Autor: | George Sterman, Werner Vogelsang |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Physical Review |
| DOI: | 10.48550/arxiv.2208.00937 |
| Popis: | 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. Comment: 35 pages |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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