A study on dynamic beam-beam effects and their application in BEPCII

被引：0
|
作者：
Chuang Zhang
机构：
[1] Chinese Academy of Sciences,Institute of High Energy Physics
来源：
Science China Physics, Mechanics and Astronomy | 2012年 / 55卷
关键词：
collider; beam-beam interaction; dynamic effects; luminosity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Beam-beam interactions cause dynamic behaviour of the charged particle beams in circular colliders, which is directly related to their luminosity. The linear beam-beam force introduces an additional quadrupole that perturbs betatron motion of particles, including dynamic β, dynamic emittance and beam-beam tune-shifts; while the nonlinear force may excite resonances and cause tune-spread. With the weak-strong beam-beam mode, the linear and nonlinear effects are studied, dynamic β and dynamic emittance as functions of tunes are analyzed, and formulas of beam-beam octupole caused tune-spread are derived, starting from beam-beam potential and equations of particle motions, and the measures to increase luminosity of BEPCII are discussed.
引用
收藏
页码：660 / 665
页数：5
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