The neutron and proton mass radii from the vector meson photoproduction data on the deuterium targetChengdong Han, Gang Xie, Wei Kou, Rong Wang and Xurong ChenEur. Phys. J. A, 58 6 (2022) 105DOI: https://doi.org/10.1140/epja/s10050-022-00756-0