A Microscopic Calculation of Photoabsorption Cross Sections on Protons and Nuclei

Simple item page
dc.creatorRapp, R.
dc.creatorUrban, M.
dc.creatorBuballa, M.
dc.creatorWambach, J.
dc.date1997-09-05
dc.date.accessioned2026-07-07T11:36:39Z
dc.date.available2026-07-07T11:36:39Z
dc.descriptionA recently developed model for $ρ$-meson propagation in dense hadronic matter is applied to total photoabsorption cross sections in $γ$-proton and $γ$-nucleus reactions. Within the vector dominance model the photon coupling to the virtual pion cloud of the nucleon, two-body meson-exchange currents, as well as $γ$-nucleon resonances are included. Whereas the $γp$ reaction is determined by the low-density limit of the model, higher orders in the nuclear density are important to correctly account for the experimental spectra observed on both light and heavy nuclei over a wide range of photon energies, including the region below the pion threshold. In connection with soft dilepton spectra in high-energy heavy-ion collisions we emphasize the importance of photoabsorption to further constrain the parameters of the model.
dc.description10 pages RevTeX, 2 eps-figures
dc.identifierhttps://arxiv.org/abs/nucl-th/9709008
dc.identifierhttp://arxiv.org/abs/nucl-th/9709008
dc.identifierPhys.Lett.B417:1-6,1998
dc.identifierdoi:10.1016/S0370-2693(97)01360-9
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198990
dc.subjectNuclear Theory
dc.titleA Microscopic Calculation of Photoabsorption Cross Sections on Protons and Nuclei
dc.typetext

Files

Collections

arXiv