# Comparison of ILC fast beam-beam feedback performance in the $e^-e^-$ and $e^+e^-$ modes of operation

Abstract : Several feedback loops are required in the Beam Delivery System (BDS) of the International Linear Collider (ILC) to preserve the luminosity in the presence of dynamic imperfections. Realistic simulations have been carried out to study the performance of the beam-beam deflection based fast feedback system, for both e+e− and e−e− modes of operation. The beam-beam effects in the e−e− collisions make both the luminosity and the deflections more sensitive to offsets at the interaction point (IP) than in the case of the e+e− collisions. This reduces the performance of the feedback system in comparison to the standard e+e− collisions, and may require a different beam parameter optimization.
Document type :
Conference papers

Cited literature [5 references]

http://hal.in2p3.fr/in2p3-00194941
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Submitted on : Monday, December 10, 2007 - 4:19:47 PM
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• HAL Id : in2p3-00194941, version 1

### Citation

M. Alabau Pons, P. Bambade, A. Faus-Golfe, A. Latina, D. Schulte. Comparison of ILC fast beam-beam feedback performance in the $e^-e^-$ and $e^+e^-$ modes of operation. 2007 Particle Accelerator Conference (PAC07), Jun 2007, Albuquerque, United States. pp.2832-2834. ⟨in2p3-00194941⟩

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