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Zang, L.

Paper Title Page
THPMN083 Spin Tracking at the International Linear Collider 2901
  • I. R. Bailey, I. R. Bailey, J. A. Clarke, J. B. Dainton, L. J. Jenner, O. B. Malyshev, L. I. Malysheva, G. A. Moortgat-Pick, D. J. Scott
    Cockcroft Institute, Warrington, Cheshire
  • D. P. Barber
    DESY, Hamburg
  • E. Baynham, T. W. Bradshaw, F. S. Carr, Y. Ivanyushenkov, J. Rochford
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • A. Birch
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
  • A. J. Brummitt, A. J. Lintern
    STFC/RAL, Chilton, Didcot, Oxon
  • P. Cooke, L. Zang
    Liverpool University, Science Faculty, Liverpool
  • A. F. Hartin
    OXFORDphysics, Oxford, Oxon
  Funding: This work is supported in part by the Commission of the European Communities under the 6th Framework Programme "Structuring the European Research Area", contract number RIDS-011899.

Polarized electron and positron beams are foreseen for the future International Linear Collider (ILC), with polarized electrons already included in the baseline design and polarized positrons seen as a highly-desirable upgrade. High precision physics requires the polarization of both beams to be known with a relative uncertainty of approximately 0.5% or better. Therefore all possible depolarization effects that could operate between the polarized sources and the interaction regions have to be carefully modelled. The "heLiCal" collaboration aims to provide a full "cradle-to-grave" analysis of all depolarization effects at the ILC, and to develop software tools to carry out appropriate computer simulations. In this paper we report on the first phase of our work which includes extensive simulations of the ILC spin-dynamics and a detailed study of beam-beam depolarization effects at the interaction point(s).