Phys. Rev. Lett. 96, 044801 (2006) [4 pages]Experimental Demonstration of Relativistic Electron CoolingReceived 22 November 2005; published 30 January 2006 We report on an experimental demonstration of electron cooling of high-energy antiprotons circulating in a storage ring. In our experiments, electron cooling, a well-established method at low energies (<500 MeV/nucleon), was carried out in a new region of beam parameters, requiring a multi-MeV dc electron beam and an unusual beam transport line. In this Letter, we present the results of the longitudinal cooling force measurements and compare them with theoretical predictions. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.96.044801
DOI:
10.1103/PhysRevLett.96.044801
PACS:
29.27.Eg, 29.27.Fh, 29.20.Dh, 41.75.−i
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