Atoms, Vol. 11, Pages 99: Measurement of the Tensor-Analyzing Power Component T20 for Incoherent Negative Pion Photoproduction on a Deuteron

Atoms, Vol. 11, Pages 99: Measurement of the Tensor-Analyzing Power Component T20 for Incoherent Negative Pion Photoproduction on a Deuteron

Atoms doi: 10.3390/atoms11060099

Authors: Anna Kuzmenko Vyacheslav Gauzshtein Eed Darwish Alexander Fix Matvey Kuzin Michael Levchuk Alexey Loginov Dmitriy Nikolenko Igor Rachek Yuriy Shestakov Dmitriy Toporkov Arseniy Yurchenko Bogdan Vasilishin Sergey Zevakov

New results for the T20-component of the tensor-analyzing power of the incoherent negative pion photoproduction are presented. The experiment was performed for the electron beam energy of 800 MeV at the VEPP-3 storage ring in 2021. To extract the T20-component, we used asymmetry with respect to the change in the sign of the tensor polarization of the deuteron target. Identification of the reaction events was carried out by the detection of two protons in coincidence. Experimental data were compared with the results of statistical simulation, considering the interaction between the NN and πN subsystems in the final state of the reaction.