  We made the first attempt to understand the observed unusual t-dependence of
single-spin asymmetry observed in the HJET experiment at RHIC. On the contrary
to the usual division of the interaction amplitudes to pure electromagnetic and
strong interaction terms with Coulomb corrections (Coulomb phase), we combine
Usually the interaction of hadrons is is presented as long-range Coulomb
interaction and short-range strong interaction with Coulomb corrections. Such a
division gives rise to a Coulomb phase of the hadronic term. On the contrary,
here we consider short-range hadronic interaction as a correction to the
long-range electromagnetic term, i.e. treat it as absorptive corrections. They
significantly affect the Coulomb-nuclear interference, which is a source of
single-spin azimuthal asymmetry at very small angles.

High Energy Physics - Phenomenology