Eur. Phys. J. A (2003) 18: 383-388
https://doi.org/10.1140/epja/i2002-10241-3

HERA results on the structure of the proton

¹ H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK
² DESY, Notkestrasse 85, Hamburg, Germany

^* e-mail: b.foster@bris.ac.uk

Abstract

A selection of results from the H1 and ZEUS experiments at HERA are reviewed, particularly in the area of deep inelastic scattering and diffraction. Quantum chromodynamics gives a good explanation of these data down to surprisingly low values of the four-momentum transfer, Q ². Data at smaller Q ² can be described by Regge models as well as by dipole models including parton-saturation effects. The latter can also give a unified description of many features of diffractive data.