Measurement of the tensor analyzing power for the γd → ppπ− reaction in the low energy range of protons

Abstract

All three components of the tensor analyzing power for the reaction of [Formula: see text]-meson photoproduction on a deuteron have been measured in photon energy range of 280–500[Formula: see text]MeV and proton energy range of 15–70[Formula: see text]MeV. The experiment has been conducted on an internal tensor-polarized deuterium gas target of the VEPP-3 electron storage ring using the method of detecting two final protons in coincidence. Measured components of the tensor analyzing power have been compared with calculations results obtained within the framework of diagrammatic approach.