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 Tapproximate to40-170 MeV using a dedicated large acceptance ring, the antiproton beam polarization would reach P=0.2-0.4. Polarized antiprotons would open new and unique research opportunities for spin-physics experiments in (p) over barp interactions.

A method to polarize stored antiprotons to a high degree

LENISA, Paolo;CONTALBRIGO, Marco;FERRETTI, Paola;
2005

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 Tapproximate to40-170 MeV using a dedicated large acceptance ring, the antiproton beam polarization would reach P=0.2-0.4. Polarized antiprotons would open new and unique research opportunities for spin-physics experiments in (p) over barp interactions.
2005
Rathmann, F; Lenisa, Paolo; Steffens, E; Contalbrigo, Marco; Ferretti, Paola; Kacharava, A; Lehrach, A; Lorentz, B; Maier, R; Prasuhn, D; Stroher, H....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/494512
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