Proton Structure Function Measurements from HERA
Joerg Gayler
TL;DR
This paper reports on measurements of proton structure functions at HERA across a wide Q^2 range, revealing the rise of F2 at small x and electroweak effects, with QCD fits providing parton densities and alpha_s values.
Contribution
It presents new experimental data on proton structure functions and QCD fits that improve understanding of parton distributions and fundamental constants.
Findings
F2 structure function rises at small x
Electroweak effects observed at high Q^2
QCD fits yield precise parton densities and alpha_s
Abstract
Measurements of proton structure functions made in neutral and charged current interactions at HERA are discussed, covering four-momentum transfers Q^2 from about 0.5 GeV^2 to 30000 GeV^2. The results include the rise of the structure function F2 towards small x and electro-weak effects at high Q^2. QCD fits made by the H1 and ZEUS collaborations provide both, parton densities with uncertainties, and precise alpha_s determinations.
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