HERA: a Supermicroscope for Investigating the Structure of the Proton |
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Authors: | Gerd W Buschhorn |
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Institution: | Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), F?hringer Ring 6, D-80805 Munich, Germany, DE
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Abstract: | HERA, a high energy particle collider at the Deutsches Elektronensychrotron DESY in Hamburg, allows investigation of the
structure of the proton with a spatial resolution of 10 cm, corresponding to about 1/1000 of its diameter. This view deep into the inner properties of matter is obtained from the
scattering of high-energy electrons or positrons from high-energy protons. With its 6.3 km circumference, HERA can be regarded
as a gigantic electron microscope. The high energies available at HERA allow a wealth of further studies on the properties
of elementary particles and their interactions. After a brief review of earlier experiments, the article describes the concept
of HERA and the detectors H1 and ZEUS, with which the scattering events are analyzed, as well as some of the physics results. |
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