Title :
Experimental Study of Crossing-Angle and Parasitic-Crossing Effects at the PEP-II E+E-Collider
Author :
Kozanecki, W. ; Narsky, I. ; Cai, Y. ; Seeman, J.T. ; Sullivan, M.
Author_Institution :
DAPNIA-SPP, CEA-Saclay, 91191 Gif-sur-Yvette, France, witold@hep.saclay.cea.fr
Abstract :
In a series of dedicated accelerator experiments, we measure the dependence of the PEP-II luminosity performance on small horizontal crossing angles and on the horizontal separation at the first parasitic crossing. The experiment is carried out by varying the IP angle of one of the beams in two different bunch patterns, one with and one without parasitic crossings. The measurements show satisfactory agreement with three-dimensional beam-beam simulations.
Keywords :
Colliding beam accelerators; Costs; Current measurement; Degradation; Extraterrestrial measurements; Infrared detectors; Linear accelerators; Magnets; Radio frequency; US Department of Energy;
Conference_Titel :
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN :
0-7803-8859-3
DOI :
10.1109/PAC.2005.1590942
