Universal Non-perturbative Functions for SIDIS and Drell-Yan Processes

Abstract

We update the well-known BLNY fit to the low transverse momentum Drell-Yan lepton pair productions in hadronic collisions, by considering the constraints from the semi-inclusive hadron production in deep inelastic scattering (SIDIS) from HERMES and COMPASS experiments. We follow the Collins-Soper-Sterman (CSS) formalism with the b_*-prescription. A universal non-perturbative form factor associated with the transverse momentum dependent quark distributions is found in the analysis with a new functional form different from that of BLNY. This releases the tension between the BLNY fit to the Drell-Yan data with the SIDIS data from HERMES/COMPASS in the CSS resummation formalism.

19 pages, 11 figures; updated the fit with running effects of α_{s}, α_{em}, N_f; conclusion remains; more discussions on the results

Cited by in corpus (10)

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• Parton Fragmentation Functions
• Parton distributions and lattice QCD calculations: toward 3D structure
• Polarized jet fragmentation functions
• Scheme dependence and Transverse Momentum Distribution interpretation of Collins-Soper-Sterman resummation
• Drell-Yan lepton angular distributions in perturbative QCD
• Spin asymmetries in electron-jet production at the future electron ion collider
• Phenomenology of transverse spin: past, present and future
• Probing Nucleons and Nuclei in High Energy Collisions
• Efficient Fourier Transforms for Transverse Momentum Dependent Distributions