Abstract
A low-energy spin-physics program is being developed at the COSY storage ring. To support the planned experimental activities, several experimental tools for polarized beams and targets have been developed. The paper presents the physics case and the readiness of the setup for its realization.
Highlights
The hadron physics program has been officially terminated [1], various experimental activities are underway at the COoler SYnchrotron (COSY) storage ring of Forschungszentrum Jülich
Besides the feasibility studies related to the search for electric dipole moments [2], lowenergy spin-physics experiments employing polarized beam and targets appear as an additional focus
One objective of the investigations is the completion of the studies devoted to the identification of a viable method to produce an intense beam of polarized antiprotons undertaken some years ago by the Proton-Antiproton eXperiment (PAX) Collaboration [3]
Summary
The hadron physics program has been officially terminated [1], various experimental activities are underway at the COSY storage ring of Forschungszentrum Jülich. One objective of the investigations is the completion of the studies devoted to the identification of a viable method to produce an intense beam of polarized antiprotons undertaken some years ago by the PAX Collaboration [3]. After having successfully performed a spin-filtering test with protons using a transversely polarized hydrogen gas target [4], the PAX Collaboration plans to complete these studies with a test of the longitudinal polarization buildup at COSY. The outcome of these studies will be of utmost importance for the possible application of polarized antiprotons at the FAIR1 facility in Darmstadt
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