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abstract:
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The performance of synchrotron colliders has been limited by the beam-beam
limit, a maximum tuneshift that colliding bunches could sustain. Due to bunch-to-bunch tune variation and intra-bunch tune spread, larger tuneshifts produce severe emittance growth. Breaking through this constraint has been viewed as impossible for several decades.
A device known as the Tevatron Electron Lens (TEL) has been designed, constructed, and tested in the Tevatron at Fermilab. This device produces a pulsed beam of electrons which interact with the antiproton bunches in the Tevatron. The peak beam current is typically 2 A, and the beam energy can range from 4 keV to 12 keV. The bunches interact with the beam
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