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Recursive fragmentation model with quark spin. Application to quark polarimetry

X. Artru 1
1 Théorie
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
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
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Submitted on : Wednesday, January 6, 2010 - 2:56:07 PM
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  • HAL Id : in2p3-00441764, version 1
  • ARXIV : 1001.1061



X. Artru. Recursive fragmentation model with quark spin. Application to quark polarimetry. XIII Workshop on High Energy Spin Physics, DSPIN 2009, Sep 2009, Dubna, Russia. ⟨in2p3-00441764⟩



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