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arXiv · 0802.0504

Experimental Studies of Compensation of Beam-Beam Effects with Tevatron Electron Lenses

V. Shiltsev·Yu. Alexahin·K. Bishofberger·V. Kamerdzhiev·V. Parkhomchuk·V. Reva·N. Solyak·D. Wildman·X. -L. Zhang·F. Zimmermann
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Abstract

Applying the space-charge forces of a low-energy electron beam can lead to a significant improvement of the beam-particle lifetime limit arising from the beam-beam interaction in a high-energy collider [1]. In this article we present the results of various beam experiments with electron lenses, novel instruments developed for the beam-beam compensation at the Tevatron, which collides 980-GeV proton and antiproton beams. We study the dependencies of the particle betatron tunes on the electron beam current, energy and position; we explore the effects of electron-beam imperfections and noises; and we quantify the improvements of the high-energy beam intensity and the collider luminosity lifetime obtained by the action of the Tevatron Electron Lenses.

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V. Shiltsev, Yu. Alexahin, K. Bishofberger, V. Kamerdzhiev, V. Parkhomchuk, V. Reva, N. Solyak, D. Wildman, X. -L. Zhang, F. Zimmermann. 2008-02-04. Experimental Studies of Compensation of Beam-Beam Effects with Tevatron Electron Lenses. https://doi.org/10.1088/1367-2630%2F10%2F4%2F043042

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