2017/02/24 by B. Z. Kopeliovich, Kopeliovich, B. Z., Potashnikova, I. K. +2
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Nuclear Physics and Applications
paper · pdf · doi:10.48550/arxiv.1702.07708
openalex publication_date 2017/02/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Absorptive corrections, known to suppress proton-neutron transitions with large fractional momentum z→1 in pp collisions, become dramatically strong on a nuclear target, and push the partial cross sections of leading neutron production to the very periphery of the nucleus. The mechanism of π-a1 interference, which successfully explains the observed single-spin asymmetry in polarized pp→ nX, is extended to collisions of polarized protons with nuclei. Corrected for nuclear effects, it explains the observed single-spin azimuthal asymmetry of neutrons, produced in inelastic events, where the nucleus violently breaks up. The single-spin asymmetry is found to be negative and nearly A-independent.