Speaker
Prof.
Boris Kopeliovich
(UTFSM)
Summary
Recent data on the single-spin asymmetry of leading neutrons from the PHENIX experiment cannot be explained by the pion pole, even corrected for the strong absorption effects. We found a large spin effects from interference of the pion pole with the rho-pion Regge cut, whose parameters are fixed using data on diffractive 3-pion production, and the current algebra relations.
The numerical results of the parameter-free calculation of $A_N$ are in excellent agreement with the PHENIX data.
Primary author
Prof.
Boris Kopeliovich
(UTFSM)
