title: Experimental demonstration of colliding-beam-lifetime improvement by electron lenses.
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.
authors.affiliation: Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA.
authors.forename: V
authors.initials: V
authors.lastname: Shiltsev
authors.forename: Y
authors.initials: Y
authors.lastname: Alexahin
authors.forename: K
authors.initials: K
authors.lastname: Bishofberger
authors.forename: V
authors.initials: V
authors.lastname: Kamerdzhiev
authors.forename: G
authors.initials: G
authors.lastname: Kuznetsov
authors.forename: X-L
authors.initials: XL
authors.lastname: Zhang