Spin-dependent Pomeron and Odderon in elastic proton–proton scattering Yoshikazu Hagiwara, Yoshitaka Hatta, Roman Pasechnik and Jian Zhou Eur. Phys. J. C, 80 5 (2020) 427 Published online: 15 May 2020 DOI: 10.1140/epjc/s10052-020-8007-6