Speaker
Description
Exclusive vector-meson production in e+A collisions has been suggested as a probe to analyze the distribution of gluons within the nucleus. However, the Good-Walker paradigm implies that coherent exclusive events probe the spatial distribution of the nucleons, whereas incoherent exclusive interactions are sensitive to event-by-event fluctuations within the nucleus. Consequently, any photons resulting from nuclear de-excitations can serve as a means of tagging events where an incoherent electron-ion interaction has occurred. This talk provides estimates of the capability of the ePIC detector to tag incoherent events by utilizing photons emitted during nuclear de-excitation. Additionally, different nuclear target species (Au, Pb) are compared, and implications for their viability in studying exclusive vector-meson production at the EIC and ePIC are discussed.
