https://doi.org/10.1140/epjc/s10052-023-12089-3
Regular Article - Theoretical Physics
On the approaches to threshold resummation of rapidity distributions for the Drell-Yan process
1
INFN, Sezione di Roma 1, Piazzale Aldo Moro 5, 00185, Rome, Italy
2
Università degli Studi di Milano-Bicocca and INFN Sezione di Milano-Bicocca, Piazza della Scienza 3, 20126, Milan, Italy
Received:
11
June
2023
Accepted:
27
September
2023
Published online:
15
October
2023
We consider threshold resummation of rapidity distributions, for which various approaches exist in the literature. Recently, a work by Lustermans, Michel, Tackmann suggested that older approaches by Becher, Neubert, Xu (BNX) and Bonvini, Forte, Ridolfi (BFR) were wrong because they miss some leading power contributions at threshold. In this work, we prove and demonstrate that the BNX and BFR approaches are correct and able to resum threshold logarithms to leading power accuracy. We then show that the BNX and BFR approaches can provide rather good alternatives to more modern approaches to threshold resummation of rapidity distributions, provided the threshold logarithms are resummed according to the 
-soft definition introduced in the context of Higgs production.
© The Author(s) 2023
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