Deep inelastic cross-section measurements at large y with the ZEUS detector at HERA

Abstract

The reduced cross sections for $e^{+}p$ deep inelastic scattering have been measured with the ZEUS detector at HERA at three different centre-of-mass energies, $318$, $251$ and $225$ GeV. The cross sections, measured double differentially in Bjorken $x$ and the virtuality, $Q^2$, were obtained in the region $0.13\le y\le 0.75$, where $y$ denotes the inelasticity and $5\le Q^2\le 110$ GeV${}^2$. The proton structure functions $F_2$ and $F_L$ were extracted from the measured cross sections.

arXiv comment39 pages, 9 figures. To be submitted to Phys. Lett

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• The Color Dipole Picture and extracting the ratio of structure functions at small $x$
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• Combined Electroweak and QCD Fit to HERA Data
• Effect of the parameterization of the distribution functions on the longitudinal structure function at small $x$
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