Bury, Marcin and Hautmann, Francesco and Leal-Gomez, Sergio and Scimemi, Ignazio and Vladimirov, Alexey and Zurita, Pia (2022) PDF bias and flavor dependence in TMD distributions. JOURNAL OF HIGH ENERGY PHYSICS (10): 118. ISSN 1029-8479,
Full text not available from this repository. (Request a copy)Abstract
Transverse momentum dependent (TMD) distributions match collinear parton density functions (PDF) in the limit of small transverse distances, which is accounted for by global extractions of TMD distributions. We study the influence of the collinear PDF value and uncertainties on the determination of unpolarized TMD distributions and the description of Drell-Yan (DY) and Z-boson production measurements at low transverse momenta. We take into account, for the first time in fits including TMD evolution, flavordependent non-perturbative TMD profiles. We carry out a Bayesian analysis to incorporate the propagation of PDF uncertainties into TMD extractions. We find that collinear PDF uncertainties and non-perturbative TMD flavor dependence are both essential to obtain reliable TMD determinations, and should be included in future global analyses.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TO-BACK JETS; TRANSVERSE-MOMENTUM; W-BOSON; COLLISIONS; MASS; Parton Distributions; Resummation; Factorization; Renormalization Group |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Feb 2024 06:51 |
| Last Modified: | 02 Feb 2024 06:51 |
| URI: | https://pred.uni-regensburg.de/id/eprint/58300 |
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