Vladimirov, Alexey A. (2020) Self-Contained Definition of the Collins-Soper Kernel. PHYSICAL REVIEW LETTERS, 125 (19): 192002. ISSN 0031-9007, 1079-7114
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The rapidity anomalous dimension (RAD), or Collins-Soper kernel, defines the scaling properties of transverse momentum dependent distributions and can be extracted from the experimental data. I derive a self-contained nonperturbative definition that represents RAD without reference to a particular process. This definition makes possible exploration of the properties of RAD by theoretical methods on one side, and the properties of QCD vacuum with collider measurements on another side. To demonstrate these possibilities, I compute the power correction to RAD, its large-b asymptotic, and compare these estimations with recent phenomenological extractions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QCD; CORRELATORS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Mar 2021 09:50 |
| Last Modified: | 08 Mar 2021 09:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43412 |
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