期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 3, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP03(2019)043
关键词
Resummation; Effective Field Theories; Perturbative QCD
资金
- Albert Einstein Institute at Bern University
- Bundesministerium fur Bildung and Forschung (BMBF) [05H15WOCAA, 05H18WOCA1]
- Dutch National Organization for Scientific Research (NWO)
We resum the leading logarithms nln(2n-1)(1-z), n = 1, 2, . . . near the kine-matic threshold z=Q(2)/s1 of the Drell-Yan process at next-to-leading power in the expansion in (1 - z). The derivation of this result employs soft-collinear effective theory in position space and the anomalous dimensions of subleading-power soft functions, which are computed. Expansion of the resummed result leads to the leading logarithms at fixed loop order, in agreement with exact results at NLO and NNLO and predictions from the physical evolution kernel at (NLO)-L-3 and (NLO)-L-4, and to new results at the five-loop order and beyond.
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