Hautmann, Francesco and Scimemi, Ignazio and Vladimirov, Alexey (2020) Non-perturbative contributions to vector-boson transverse momentum spectra in hadronic collisions. PHYSICS LETTERS B, 806: 135478. ISSN 0370-2693, 1873-2445
Full text not available from this repository. (Request a copy)Abstract
Experimental measurements of Drell-Yan (DY) vector-boson production are available from the Large Hadron Collider (LHC) and from lower-energy collider and fixed-target experiments. In the region of low vector-boson transverse momenta q(T), which is important for the extraction of the W-boson mass at the LHC, QCD contributions from non-perturbative Sudakov form factors and intrinsic transverse momentum distributions become relevant. We study the potential for determining such contributions from fits to LHC and lower-energy experimental data, using the framework of low-q(T) factorization for DY differential cross sections in terms of transverse momentum dependent (TMD) distribution functions. We investigate correlations between different sources of TMD non-perturbative effects, and correlations with collinear parton distributions. We stress the relevance of accurate DY measurements at low masses and with fine binning in transverse momentum for improved determinations of long-distance contributions to Sudakov evolution processes and TMDs. (C) 2020 The Author(s). Published by Elsevier B.V.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CROSS-SECTION; W-BOSON; PAIRS; JETS; MASS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Braun Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 18 Mar 2021 09:11 |
| Last Modified: | 18 Mar 2021 09:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/44219 |
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