We discuss the prospects for observing the mass of rho- and omega-meso
ns around nuclear matter density by studying their coherent photoprodu
ction in nuclear targets and subsequent in-medium decay into e(+)e(-)
pairs. The quantum interference of rho- and omega-mesons in the e(+)e(
-) channel and the interference between Bethe-Heitler pairs and dielec
trons from vector meson decays are of particular interest.