Toward polarized antiprotons: Machine development for spin-filtering experiments
- Weidemann, C.
- Rathmann, F.
- Ciullo, G.
- Contalbrigo, M.
- Dymov, S.
- Engels, R.
- Gaisser, M.
- Gebel, R.
- Goslawski, P.
- Grigoriev, K.
- Guidoboni, G.
- Kacharava, A.
- Stein, H. J.
- Kamerdzhiev, V.
- Khoukaz, A.
- Kulikov, A.
- Lehrach, A.
- Lenisa, P.
- Lomidze, N.
- Macharashvili, G.
- Maier, R.
- Martin, S.
- Mchedlishvili, D.
- Lorentz, B.
- Meyer, H. O.
- Merzliakov, S.
- Mielke, M.
- Mikirtychiants, M.
- Mikirtychiants, S.
- Nass, A.
- Nikolaev, N. N.
- Oellers, Dieter
- Papenbrock, M.
- Pesce, A.
- Bagdasarian, Z.
- Prasuhn, D.
- Retzlaff, M.
- Schleichert, R.
- Schröer, D.
- Seyfarth, H.
- Soltner, H.
- Statera, M.
- Steffens, E.
- Stockhorst, H.
- Stroeher, Hans
- Barion, L.
- Tabidze, M.
- Tagliente, G.
- Engblom, P. Thörngren
- Trusov, S.
- Valdau, Yu.
- Vasiliev, A.
- Wüstner, P.
- Barsov, S.
- Bechstedt, U.
- Bertelli, S.
- Chiladze, D.
Publication date
January 2015
DOI Publisher
American Physical Society (APS)Abstract
The paper describes the commissioning of the experimental equipment and the machine studies required for the first spin-filtering experiment with protons at a beam kinetic energy of 49.3 MeV in COSY. The implementation of a low-β insertion made it possible to achieve beam lifetimes of τb=8000 s in the presence of a dense polarized hydrogen storage-cell target of areal density dt=(5.5±0.2)×1013 atoms/cm2. The developed techniques can be directly applied to antiproton machines and allow the determination of the spin-dependent p¯p cross sections via spin filtering
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