On double polarization asymmetries in the elastic electron-proton scattering

Double polarization asymmetry Dp (M) for the process of elastic electroweak scattering of the longitudinally polarized electrons by polarized proton target is considered with account of anapole G1p and electric dipole moment (EDM) G2p proton form factors. This asymmetry is only due to T-parity violating form factor G2p, but does not directly depend on it, and having a significant value, allows to confirm the existence of the EDM of the proton. © 2016, Allerton Press, Inc.