TL;DR
This paper develops comprehensive photon and parton density functions incorporating QED effects, enabling precise predictions for high-mass lepton pair production using the Parton Branching method.
Contribution
It introduces a complete set of TMD and collinear densities including photons, derived with QED corrections and constrained by HERA data, advancing parton distribution modeling.
Findings
Photon densities derived with QED corrections included.
Accurate description of high-mass lepton pair production.
Parton densities constrained by experimental data.
Abstract
We present a complete set of transverse momentum dependent and collinear parton densities including the photon over a wide phase space. The photon density appears when evolving parton distributions with QED corrections. The photons are produced by perturbative radiation using the Parton Branching method. The QCD partons are constrained by a fit to HERA data. The lepton pair production at high masses is described within the extracted TMD densities.
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Taxonomy
TopicsAnalytical Chemistry and Sensors