2001/01/31 by Stefano Forte, Michelangelo L. Mangano, Giovanni Ridolfi · 1 citation
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1016/s0550-3213(01)00101-8
published as Nucl.Phys.B602:585-621,2001 · 35 pages, 13 figures, plain TeX with harvmac; Final version, to be published in Nucl. Phys. B. Typo in eq 2.13 corrected and two references added
arxiv created 2001/03/14 · arxiv updated 2009/11/30
We discuss the determination of polarized parton distributions from charged-current deep-inelastic scattering experiments. We summarize the next-to-leading order treatment of charged-current polarized structure functions, their relation to polarized parton distributions and scale dependence, and discuss their description by means of a next-to-leading order evolution code. We discuss current theoretical expectations and positivity constraints on the unmeasured C-odd combinations Delta q-Delta qbar of polarized quark distributions, and their determination in charged-current deep-inelastic scattering experiments. We give estimates of the expected errors on charged-current structure functions at a future neutrino factory, and perform a study of the accuracy in the determination of polarized parton distributions that would be possible at such a facility. We show that these measurements have the potential to distinguish between different theoretical scenarios for the proton spin structure.