Experimental demonstration of colliding-beam-lifetime improvement by electron lenses |
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Authors: | Shiltsev V Alexahin Y Bishofberger K Kamerdzhiev V Kuznetsov G Zhang X-L |
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Institution: | Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA. |
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Abstract: | 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. |
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