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