Study of nuclear media effects in meson photoproduction

Abstract

In addition to the current BGO-OD experimental program we propose to study nuclear media effects in photoproduction of mesons using a new experimental method based on measuring a recoil nucleon as a tagger of the selected partial channel. The principal goal is to learn how unstable mesons (πo, π+, π−, η, ρ, ω, etc.) interact with nuclear media. This approach continues previous GRAAL experiments to study nuclear excitation dynamics, including multifragmentation of nuclei by intermediate energy photons.