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Volume 346 - 23rd International Spin Physics Symposium (SPIN2018) - Parallel Session: Acceleration, Storage and Polarimetry of Polarized Beams (V. Ptitsyn and E. Stephenson)
97% Spin Flip Efficiency at 255GeV for Polarized Protons
H. Huang,* J. Kewisch, C. Liu, A. Marusic, W. Meng, F. Meot, P. Oddo, V. Ptitsyn, V. Ranjbar, T. Roser
*corresponding author
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Pre-published on: 2019 August 19
Published on: 2019 August 23
In polarized proton collision experiments, spin flip is needed to reduce the systematic errors. At high energy colliders with Siberian snakes, a single magnet spin flipper does not work . A more sophisticated spin flipper, constructed of nine-dipole magnets, was used to flip the spin in the BNL Relativistic Heavy Ion Collider. A 97% spin-flip efficiency was measured at both 24 and 255 GeV. The spin flip experiment results are presented in this paper.
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