Semiclassical mechanism for single-spin asymmetry in π⁰-production

2006/04/03 by Troshin, S. M., Tyurin, N. E.
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.hep-ph/0604013

Abstract

The chiral quark model combined with unitarity and impact parameter picture provides simple semiclassical mechanism for generation of the single-spin asymmetry A_N in the π⁰-production in the polarized proton collisions at RHIC. We derive its linear x_F-dependence in polarized proton fragmentation region along with the energy and transverse momentum independence at large p_T values.

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