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|Title:||Measurements of the effect of collisions on transverse beam halo diffusion in the tevatron and in the LHC|
Johnson, T. R.
Valishev, Alexander A.
Assmann, Ralph W.
|Keywords:||Large Hadron Collider (France and Switzerland)|
Colliders (Nuclear physics)
Collimators (Optical instrument) -- Calibration
|Citation:||Stancari, G., Annala, G., Johnson, T. R., Previtali, V., Still, D., Valishev, A., ... & Salvachua, B. (2013). Measurements of the effect of collisions on transverse beam halo diffusion in the tevatron and in the LHC. arXiv preprint arXiv:1312.5007.|
|Abstract:||Beam-beam forces and collision optics can strongly affect beam lifetime, dynamic aperture, and halo formation in particle colliders. Extensive analytical and numerical simulations are carried out in the design and operational stage of a machine to quantify these effects, but experimental data is scarce. The technique of small-step collimator scans was applied to the Fermilab Tevatron collider and to the CERN Large Hadron Collider to study the effect of collisions on transverse beam halo dynamics. We describe the technique and present a summary of the first results on the dependence of the halo diffusion coefficient on betatron amplitude in the Tevatron and in the LHC.|
|Appears in Collections:||Scholarly Works - FacICTCCE|
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