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A Method to Polarize Stored Antiprotons to a High Degree

Accelerator Physics 2007-05-23 v1

Abstract

Polarized antiprotons can be produced in a storage ring by spin--dependent interaction in a purely electron--polarized hydrogen gas target. The polarizing process is based on spin transfer from the polarized electrons of the target atoms to the orbiting antiprotons. After spin filtering for about two beam lifetimes at energies T40170T\approx 40-170 MeV using a dedicated large acceptance ring, the antiproton beam polarization would reach P=0.20.4P=0.2-0.4. Polarized antiprotons would open new and unique research opportunities for spin--physics experiments in pˉp\bar{p}p interactions.

Keywords

Cite

@article{arxiv.physics/0410067,
  title  = {A Method to Polarize Stored Antiprotons to a High Degree},
  author = {F. Rathmann and P. Lenisa and E. Steffens and M. Contalbrigo and P. F. Dalpiaz and A. Kacharava and A. Lehrach and B. Lorentz and R. Maier and D. Prasuhn and H. Ströher},
  journal= {arXiv preprint arXiv:physics/0410067},
  year   = {2007}
}
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