Phys. Rev. Lett. 99, 244801 (2007) [4 pages]Experimental Demonstration of Colliding-Beam-Lifetime Improvement by Electron LensesReceived 2 April 2007; published 11 December 2007 We report the successful application of space-charge forces of a low-energy electron beam for improvement of particle lifetime determined by beam-beam interaction at a high-energy collider. In our experiments, an electron lens, a novel instrument developed for the beam-beam compensation, was set on a 980-GeV proton bunch at the Fermilab Tevatron proton-antiproton collider. The proton-bunch losses due to its interaction with the antiproton beam were reduced by a factor of 2 when the electron lens was operating. We describe the principle of electron lens operation and present experimental results. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.244801
DOI:
10.1103/PhysRevLett.99.244801
PACS:
29.27.Bd, 29.20.−c, 29.27.Eg, 41.85.Ja
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