The HERMES Experiment at DESY

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The HERMES Experiment at DESY
Deeply inelastic scattering of polarized
electrons on polarized targets probes the
orientation of quark spins and orbital motion
inside the proton
The Experiment Nuclear-polarized atomic gas
targets in the HERA high energy electron
storage ring
Results First observation of several phenomena
providing new insights into proton structure
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The Transition Radiation Detector
Installation in 1995
Construction in 1994