TY - JOUR
T1 - Photon-nucleus scattering and coherent π0 photoproduction in the Δ-hole model
AU - Oset, E.
AU - Weise, W.
N1 - Funding Information:
acknowledge financial support from the Fundaci6n
PY - 1981/10/5
Y1 - 1981/10/5
N2 - The microscopic Δ-isobar-hole model is applied to the study of photon-nucleus scattering and coherent photoproduction. The role of π and ρ exchange together with additional correlations in the Δ-hole interaction are investigated and compared with the situation in π-nucleus scattering. Because of the transverse photon coupling, the coherent forward propagation of pions, and therefore the strong elastic broadening observed in pion-nuclear scattering, is largely suppressed. The photonuclear processes prove to be sensitive to the medium corrections incorporated through the Δ-self-energies, which are responsible for a strong damping of the reaction cross section. Results are shown for 4He and 16O and compared to the available experimental data.
AB - The microscopic Δ-isobar-hole model is applied to the study of photon-nucleus scattering and coherent photoproduction. The role of π and ρ exchange together with additional correlations in the Δ-hole interaction are investigated and compared with the situation in π-nucleus scattering. Because of the transverse photon coupling, the coherent forward propagation of pions, and therefore the strong elastic broadening observed in pion-nuclear scattering, is largely suppressed. The photonuclear processes prove to be sensitive to the medium corrections incorporated through the Δ-self-energies, which are responsible for a strong damping of the reaction cross section. Results are shown for 4He and 16O and compared to the available experimental data.
UR - http://www.scopus.com/inward/record.url?scp=0001670125&partnerID=8YFLogxK
U2 - 10.1016/0375-9474(81)90762-4
DO - 10.1016/0375-9474(81)90762-4
M3 - Article
AN - SCOPUS:0001670125
SN - 0375-9474
VL - 368
SP - 375
EP - 393
JO - Nuclear Physics, Section A
JF - Nuclear Physics, Section A
IS - 3
ER -