# Toward polarized antiprotons: Machine development for spin-filtering experiments

@article{Weidemann2015TowardPA, title={Toward polarized antiprotons: Machine development for spin-filtering experiments}, author={C. Weidemann and F. Rathmann and H. Stein and B. Lorentz and Z. Bagdasarian and L. Barion and S. Barsov and U. Bechstedt and S. Bertelli and D. Chiladze and G. Ciullo and M. Contalbrigo and S. Dymov and R. Engels and M. Gaisser and R. Gebel and P. Goslawski and K. Grigoriev and G. Guidoboni and A. Kacharava and V. Kamerdzhiev and A. Khoukaz and A. Kulikov and A. Lehrach and P. Lenisa and N. Lomidze and G. Macharashvili and R. Maier and S. Martin and D. Mchedlishvili and H. Meyer and S. Merzliakov and M. Mielke and M. Mikirtychiants and S. Mikirtychiants and A. Nass and N. Nikolaev and D. Oellers and M. Papenbrock and A. Pesce and D. Prasuhn and M. Retzlaff and R. Schleichert and D. Schroer and H. Seyfarth and H. Soltner and M. Statera and E. Steffens and H. Stockhorst and H. Stroher and M. Tabidze and G. Tagliente and P. Engblom and S. Trusov and Y. Valdau and A. Vasiliev and P. Wustner}, journal={Physical Review Special Topics-accelerators and Beams}, year={2015}, volume={18}, pages={020101} }

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=8000s in the presence of a dense polarized hydrogen storage-cell target of areal density dt=(5.5±0.2)×1013atoms/cm2. The developed techniques can be directly applied to antiproton machines and allow the… Expand

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