Flavor dependence of unpolarized quark Transverse Momentum Distributions from a global fit

Abstract

We present an extraction of the unpolarized transverse-momentum-dependent parton distribution and fragmentation functions that takes into account possible differences between quark flavors and final-state hadrons. The extraction is based on experimental measurements from Drell-Yan processes and semi-inclusive deep-inelastic scattering, whose combination is essential to distinguish flavor differences. The analysis is carried out at N${}^3$LL accuracy. The extracted flavor-dependent distributions give a very good description of the data (${\chi }^2/N_{\mathrm{dat}}=1.08$). The resulting uncertainties take fully into account also the uncertainties in the determination of the corresponding collinear distributions.

Updated version as published in JHEP

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Cited by in corpus (11)

• Drell-Yan Transverse-Momentum Spectra at N${}^3$LL${}^{\prime }$ and Approximate N${}^4$LL with SCETlib
• Collins-Soper Kernel in the QCD Instanton Vacuum
• Energy-scaling behavior of intrinsic transverse momentum parameters in Drell-Yan simulation
• Collinear and TMD distributions with dynamical soft-gluon resolution scale
• Determination of the initial condition for the Balitsky-Kovchegov equation with transformers
• Coarse-grained binning in Drell-Yan transverse momentum spectra
• Lattice QCD Benchmark of Proton Helicity and Flavor-Dependent Unpolarized Transverse Momentum-Dependent Parton Distribution Functions at Physical Quark Masses
• Transverse momentum asymmetry in the semi-inclusive electron positron annihilation process
• Quark polarization and transverse momentum effects on double quarkonium production in hadronic collisions
• Soft background fields at next-to-leading power in transverse momentum dependent SIDIS with jets
• Deep Neural Network extraction of Unpolarized Transverse Momentum Distributions