Bermudez Martinez, Armando and Vladimirov, Alexey (2022) Determination of the Collins-Soper kernel from cross-sections ratios. PHYSICAL REVIEW D, 106 (9): L091501. ISSN 2470-0010, 2470-0029
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The Collins-Soper kernel is a powerful tool for studying the properties of the QCD vacuum and an essential component of the transverse momentum dependent (TMD) factorization theorem. In this paper, we present a novel method for determining the Collins-Soper kernel directly from the comparison of differential cross sections measured at different energies. The method relies solely on the structure of the TMD factorization theorem and thus also provides a direct test of the theorem validity. With minor modifications, the procedure can be applied to the real measured data for Drell-Yan and SIDIS processes. As a demonstration, we analyze the pseudodata generated by the CASCADE event generator and determine the Collins-Soper kernel suggested by the parton branching model.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Feb 2024 08:49 |
| Last Modified: | 16 Feb 2024 08:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/58030 |
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