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The paper presents new results for the T20 analyzing power tensor component of the γd→pnπ0 reaction in the photon energy range of 300 MeV < Eγ < 500 MeV. The experimental statistics accumulated in 2013 at the VEPP-3 accelerator-storage complex using an internal tensor-polarized gaseous deuterium target has been used. The reaction events are identified by the coincidence registration of the proton and two gamma quanta from the neutral pion decay. To determine the T20 component, the asymmetry of the yields with respect to the change in the sign of the tensor polarization of the deuterium target is measured. Experimental results are compared with the theoretical calculations for the MAID 2007 model of the amplitude used as the elementary pion-nucleon photoproduction amplitude and contributions of pion-nucleon and nucleon-nucleon rescattering are taken into account. [ABSTRACT FROM AUTHOR]

This paper presents new results for the T 2 0 -component of the tensor analyzing power of the reaction γ d → p n π 0 in the photon energy range of 3 0 0 MeV < E γ < 5 0 0 MeV. The experimental statistics accumulated in 2013 at the VEPP-3 accelerator-storage complex is used. The reaction events are identified by the coincidence registration of the proton and two γ -quanta from the decay of the neutral pion. To determine the T 2 0 -component, the asymmetry of the yields with respect to the change of sign of the tensor polarization of the deuterium target is measured. The experimental results are compared with the theoretical calculations in which the MAID 2007 model is used as the elementary pion–nucleon photoproduction amplitude and contributions from the pion–nucleon and nucleon–nucleon rescattering are taken into account. [ABSTRACT FROM AUTHOR]

We present the first accurate results of measurements of the tensor analyzing power component T 20 for the coherent neutral pion photoproduction on the deuteron. The measurements were performed at the Budker Institute of Nuclear Physics at VEPP-3 storage ring using the internal tensor polarized deuterium target. The measurements cover the region of photon energy from 200 to 450 MeV and the region of the center-of-mass pion polar angle from 100 to 140 degrees. The results obtained are compared with predictions of several theoretical models. [ABSTRACT FROM AUTHOR]

The paper presents the results of measurements of the tensor analyzing power component T 2 0 for the coherent neutral pion photoproduction on the deuteron. The measurements were performed in the Budker Institute of Nuclear Physics using the internal tensor polarized deuterium target at VEPP-3 storage ring. The measurements covered the region of the photon energy 240 — 420 MeV and the region of the center-of-mass pion polar angle 100–140 ∘ . The results of measurements were compared with the calculations performed within frameworks of several theoretical models. [ABSTRACT FROM AUTHOR]

The components of the tensor analyzing powers, T20, T21, and T22, of the coherent photoproduction of a π0 meson on a deuteron have been measured for photon energies of 250–450 MeV and pion emission angles of 90°–145°. The results are compared with the theoretical predictions. [ABSTRACT FROM AUTHOR]