Recursive fragmentation model with quark spin. Application to quark polarimetry
arXiv:1001.1061
Abstract
An elementary recursive model accounting for the quark spin in the fragmentation of a quark into mesons is presented. The quark spin degree of freedom is represented by a two-components spinor. Spin one meson can be included. The model produces Collins effect and jet handedness. The influence of the initial quark polarisation decays exponentially with the rank of the meson, at dierent rates for longitudinal and transverse polarisations
XIII Workshop on High Energy Spin Physics, DSPIN 2009, Dubna, Russia, September 1-5, 2009