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Mesonproduction and experimental studies of the excitation spectrum of the nucleon
Physikalisches Institut, Universität Bonn, Germany
Published online: 12 February 2004
Key issues of the structure of the nucleon can be addressed by experimental studies of Mesonproduction. Depending on the selected channels and kinematics, different aspects can be investigated. The measurements of charged channels at low t constitute a large part of the cross section and exhibit a special sensitivity of the meson cloud. These contributions can be strongly suppressed by using a polarized beam and target. Instead, the excitation of resonances are emphasized in this case. The choice of neutral channels in the final state shows also dominant sensitivities for resonance excitation. The sequential decay of resonances can be studied systematically for the first time.
© Società Italiana di Fisica, Springer-Verlag, 2004