Coulomb and photo cross sections for nucleon emission from relativistic O projectiles |
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Authors: | Roswitha Fleischhauer and Werner Scheid |
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Affiliation: | Institut für Theoretische Physik, Justus-Liebig-Universität Giessen, Fed. Rep. Germany |
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Abstract: | Coulomb cross sections for nucleon emission out of 16O projectiles scattered with laboratory energies of 2.1, 60 and 200 GeV/nucleon on various target nuclei are calculated in first-order perturbation theory by using the corresponding photo cross sections. The photo cross sections are obtained with an 1-particle-1-hole basis in the giant resonance region and with the quasi-deuteron model up to photon energies of 140 MeV. Whereas the 2.1 GeV/nucleon results agree well with the experimental data points, the 60 and 200 GeV/nucleon cross sections are roughly one quarter lower than the measured ones, because also photons with energies higher than 140 MeV contribute at these incident energies. |
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