Inclusive proton polarization in γ3,4He → pX reactions

This paper presents the first measured data on the inclusive proton polarization in the interaction of photons with 3He and 4He nuclei. The proton energy (170 MeV) and emission angle (72 degree) were chosen such that the proton yield from the meson photoproduction reaction on free nucleons should be kinematically forbidden, and the photon energy in the disintegration of the two-nucleon pair in the nucleus should be such that ensures an essential polarization of the proton from the deuteron photodisintegration. The measurements were performed using the Kharkov 2 GeV electron linac facilities