“…FIG. 13: Recoil polarization of the reaction γp → π 0 p. Dashed (blue) line: fit 1; solid (red) line: fit 2; data from Bonn [184][185][186][187][188], Kharkov [172,[189][190][191][192][193][194][195][196][197][198][199][200][201][202][203], Tokyo [204][205][206], Caltech [207,208], Frascati [209,210], Yerevan [211][212][213][214][215][216], JLab [217,218], DNPL [176,219], and CEA [220]. [228], BL84 [226], BS76 [229], BS80 [227].…”