Structure Function Results from ZEUS

TL;DR

This paper reports recent ZEUS measurements of proton structure functions at HERA, including the s-quark content, parton densities, and W boson mass, using various cross section analyses and NLO QCD fits.

Contribution

It provides new measurements of proton structure functions and parton densities, and determines the W boson mass using ZEUS data and NLO QCD analysis.

Findings

Measured inclusive phi(1020)-meson cross section

Extracted the structure function F_2 from radiative events

Determined the W boson mass from cross section data

Abstract

This contribution presents recent ZEUS results on proton structure functions at HERA. The inclusive phi(1020)-meson cross section was measured, and it was used to determine the s-quark content of the proton. The structure function F_2 was extracted using initial-state radiative events. Neutral and charged current cross sections were used to extract the structure function xF_3 and measure the mass of the W boson, respectively. A NLO QCD fit to ZEUS data and fixed target cross sections was employed to determine the parton density functions of the quarks and of the gluon inside the proton.