Journalartikel

Jahr der Veröffentlichung: 1995

Seiten: 223-230

Zeitschrift: Zeitschrift für Physik A, Hadrons and Nuclei

Bandnummer: 352

Heftnummer: 2

ISSN: 0939-7922

DOI Link: https://doi.org/10.1007/BF01298912

Verlag: Springer

Abstract: 
We calculate the quasifree photoproduction of pions and eta mesons on nuclei from C-12 to (208)pb. Assuming that for the quasifree process the cross sections for pi/eta photoproduction on a nucleon in medium are - besides a lowering due to Pauli blocking - identical to those on a free nucleon, we use these as an input. The produced mesons or resonances then propagate through the nucleus where they can undergo several scattering and absorption processes. This final state interaction, which leads to a lowering of the initial meson yield up to 70%, we simulate in a coupled channel Boltzmann-Uehling-Uhlenbeck transport model. It allows us to study in detail the influence of Fermi motion, Pauli blocking and of the additional decay channels for nucleon resonances in medium on the photoproduction cross section. The calculated total and differential cross sections are compared to experimental data and the influence of the different medium effects on the cross sections is discussed in detail.

Harvard-Zitierstil: Hombach, A., Engel, A., Teis, S. and Mosel, U. (1995) Pion and eta photoproduction in nuclei, Zeitschrift für Physik A, Hadrons and Nuclei, 352(2), pp. 223-230. https://doi.org/10.1007/BF01298912

APA-Zitierstil: Hombach, A., Engel, A., Teis, S., & Mosel, U. (1995). Pion and eta photoproduction in nuclei. Zeitschrift für Physik A, Hadrons and Nuclei. 352(2), 223-230. https://doi.org/10.1007/BF01298912