The search for an electric dipole moment (EDM) using a polarized, charged-particle beam in a storage ring requires ring conditions that can maintain a longitudinal polarization for times up to 1000 s. This situation is unstable against the spread of the particle spins in the horizontal plane, so a method to control this effect must be demonstrated. For this reason, a series of dedicated studies is being performed at the COoler SYnchrotron (COSY) at the Forschungszentrum-Jülich to examine the effects of emittance spread on the spin coherence time. To support these studies, a novel polarimeter system has been developed that can monitor the horizontal polarization of the beam circulating in the ring as it precesses at ~120 kHz

Search for Electric Dipole Moments with Polarized Beams in Storage Rings.

LENISA, Paolo;GUIDOBONI, Greta;
2013

Abstract

The search for an electric dipole moment (EDM) using a polarized, charged-particle beam in a storage ring requires ring conditions that can maintain a longitudinal polarization for times up to 1000 s. This situation is unstable against the spread of the particle spins in the horizontal plane, so a method to control this effect must be demonstrated. For this reason, a series of dedicated studies is being performed at the COoler SYnchrotron (COSY) at the Forschungszentrum-Jülich to examine the effects of emittance spread on the spin coherence time. To support these studies, a novel polarimeter system has been developed that can monitor the horizontal polarization of the beam circulating in the ring as it precesses at ~120 kHz
2013
29.27.Hj Polarized beams; 29.20.D- Cyclic accelerators and storage rings; 31.30.jn electric dipole moments
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1951812
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