Leading q T /Q correction for Drell-Yan process in TMD factorization
Abstract The transverse momentum dependent (TMD) factorization theorem accommodates various types of power corrections. Among them, the least studied are q T /Q corrections, which become significant at large values of transverse momentum. These corrections partially originate from higher-twist TMD d...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-06-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP06(2025)202 |
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| Summary: | Abstract The transverse momentum dependent (TMD) factorization theorem accommodates various types of power corrections. Among them, the least studied are q T /Q corrections, which become significant at large values of transverse momentum. These corrections partially originate from higher-twist TMD distributions, which exhibit singularity at small transverse distances. We propose a decomposition that reveals this singularity explicitly, and makes the q T /Q correction manifest. As a concrete application, we consider the next-to-leading power correction for the angular distributions in Drell-Yan, and determine the leading q T /Q corrections. These corrections are significant for the angular distributions A 1 and A 3, in complete agreement with the data. |
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| ISSN: | 1029-8479 |