EuCARD-2 XPOL workshop on “Polarization Issues in Future High Energy Circular Colliders”



Crowne Plaza Rome - St. Peter's hotel (via Aurelia Antica 415)
Kurt Aulenbacher (Institut für Kernphysik, Johannes Gutenberg-Universität Mainz)

This XPOL workshop will review schemes to produce and use polarized beams in future high-energy storage rings, with a focus on the FCC-ee. Two candidate schemes considered for precise beam energy calibration at the FCC-ee include resonant depolarization of self-polarized pilot bunches as well as the injection and spin precession of a pre-polarized beam. Self polarization using the Sokolov-Ternov effect was successfully realized at LEP and HERA. The  injection of polarized bunches may require Siberian snakes in the lepton booster ring. The lepton ERL of the FCC-he will definitely require a intense sources of polarized electrons, and possibly positrons. The possibility of obtaining polarized hadron beams in the FCC-hh may also be discussed, e.g. extrapolating from RHIC experience. Higher precision polarimetry is of interest for all  operation modes with polarized beams.

  • Alain Blondel
  • Eliana Gianfelice
  • Fabian Nillius
  • Frank Zimmermann
  • Ivan Koop
  • John Jowett
  • Jorg Wenninger
  • Katsunobu Oide
  • Kurt Aulenbacher
  • Louis Rinolfi
  • Michael Koratzinos
  • Vadim Ptitsyn
  • Wolfgang Hillert
    • 09:00 10:30
      Session I: Lepton collider
    • 10:30 11:00
      Coffee 30m
    • 11:00 12:30
      Session II: Lepton collider II
    • 12:30 14:00
      Lunch 1h 30m
    • 14:00 16:00
      Session III: Lepton collider III
    • 16:00 16:30
      Coffee 30m
    • 16:30 18:30
      Session IV: Lepton collider, hadron collider & lepton-hadron collider