2013/12/18 by Giulio Stancari, G. Stancari, Alexander Valishev +2
Engineering · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #Antiproton #Beam (structure) #Bunches #Collider #Electron #FOS: Physical sciences #Fermilab #Large Hadron Collider #Nuclear physics #Optics #Particle Accelerators and Free-Electron Lasers #Particle accelerator #Particle accelerators and beam dynamics #Particle physics #Physics #Proton #Superconducting Materials and Applications #Tevatron #physics.acc-ph
paper · pdf · doi:10.48550/arxiv.1312.5006
5 pages, 6 figures. Submitted to the Proceedings of the ICFA Mini-Workshop on Beam-beam Effects in Hadron Colliders (BB2013), Geneva, Switzerland, 18-22 March 2013
arxiv created 2013/12/18 · openalex publication_date 2013/12/18 · arxiv updated 2013/12/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
At the Fermilab Tevatron collider, we studied the feasibility of suppressing the antiproton head-on beam-beam tune spread using a magnetically confined 5-keV electron beam with Gaussian transverse profile overlapping with the circulating beam. When electron cooling of antiprotons was applied in regular Tevatron operations, the nonlinear head-on beam-beam effect on antiprotons was small. Therefore, we first focused on the operational aspects, such as beam alignment and stability, and on fundamental observations of tune shifts, tune spreads, lifetimes, and emittances. We also attempted two special collider stores with only 3 proton bunches colliding with 3 antiproton bunches, to suppress long-range forces and enhance head-on effects. We present here the results of this study and a comparison between numerical simulations and observations. These results contributed to the application of this compensation concept to RHIC at Brookhaven.