Work

Extraction of unpolarized quark transverse momentum dependent parton distributions from Drell-Yan/Z-boson production

Year: 2019

Type: article

Abstract: We present the extraction of unpolarized quark transverse momentum dependent parton distribution functions (TMDPDFs) and the non-perturbative part of TMD evolution kernel from the global analysis of Drell-Yan and Z-boson production data. The analysis is performed at the next-to-next-to-leading order (NNLO) in perturbative QCD, using the ζ-prescription. The estimation of the error-propagation from the experimental uncertainties to non-perturbative function is made by the replica method. The importance of the inclusion of the precise LHC data and its influence on the determination of non-perturbative functions is discussed.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep06(2019)028

Authors: Valerio Bertone, Ignazio Scimemi, Alexey Vladimirov

Institutions: University of Pavia, Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, Universidad Complutense de Madrid, University of Regensburg

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: European Commission, Ministerio de Educación, Cultura y Deporte, H2020 European Research Council

Awards: G434337789, G4519023722, 3-Dimensional Maps of the Spinning Nucleon