Abstract
Recent studies of the interaction of vector mesons with nuclei make possible and opportune the study of the interaction of the with nuclei and the investigation of the origin of the suppression in its propagation thorough a nuclear medium. We observe that the transition of to with being a light vector, , together with the inelastic channels, and , leads to a particular shape of the inelastic cross section. Analogously, we consider the mechanisms where the exchanged collides with a nucleon and gives or . The cross section has a peak around MeV, where the couples to a resonance predicted recently. We study the transparency ratio for electron-induced production in nuclei at about 10 GeV and find that 30–35 of the produced in heavy nuclei are absorbed inside the nucleus. This ratio is in line with depletions of through matter observed in other reactions.
3 More- Received 13 March 2012
DOI:https://doi.org/10.1103/PhysRevC.86.014604
©2012 American Physical Society