English

Toward polarized antiprotons: Machine development for spin-filtering experiments

Accelerator Physics 2015-03-10 v2 Nuclear Experiment

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 49.349.3\,MeV in COSY. The implementation of a low-β\beta insertion made it possible to achieve beam lifetimes of τb=8000\tau_{\rm{b}}=8000\,s in the presence of a dense polarized hydrogen storage-cell target of areal density dt=(5.5±0.2)×1013atoms/cm2d_{\rm t}=(5.5\pm 0.2)\times 10^{13}\,\mathrm{atoms/cm^{2}}. The developed techniques can be directly applied to antiproton machines and allow for the determination of the spin-dependent pˉp\bar{p}p cross sections via spin filtering.

Keywords

Cite

@article{arxiv.1407.6724,
  title  = {Toward polarized antiprotons: Machine development for spin-filtering experiments},
  author = {C. Weidemann and F. Rathmann and H. J. 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. O. Meyer and S. Merzliakov and M. Mielke and M. Mikirtychiants and S. Mikirtychiants and A. Nass and N. N. Nikolaev and D. Oellers and M. Papenbrock and A. Pesce and D. Prasuhn and M. Retzlaff and R. Schleichert and D. Schröer and H. Seyfarth and H. Soltner and M. Statera and E. Steffens and H. Stockhorst and H. Ströher and M. Tabidze and G. Tagliente and P. Thörngren Engblom and S. Trusov and Yu. Valdau and A. Vasiliev and P. Wüstner},
  journal= {arXiv preprint arXiv:1407.6724},
  year   = {2015}
}
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