Luminosity-limiting coherent phenomena in electron-positron colliders.
Luminosity-limiting coherent phenomena in electron-positron colliders.
复制标题
电子-正电子对撞机中的光度限制相干现象。
DOI：
10.1103/physrevlett.76.235
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发表时间：
1996
影响因子：
8.6
通讯作者：
Krishnagopal
中科院分区：
文献类型：
--
作者：
Krishnagopal
我们已经开发了一个新的模拟程序，正确地模拟了电子+电子对撞机中具有任意分布和椭圆度的光束的横向束-束动力学。我们发现，动力学，从而实现的亮度，是有限的两种相干现象的触发器效应和周期n光束尺寸振荡。虽然这两种解决方案共存，但前者通常比后者更强，并且在较低的电流下发生。这些结果与实验观察结果基本一致，并表明在目前正在建设的高光度B工厂的操作参数的选择中需要更加小心。
We have developed a new simulation program that correctly models the transverse beam-beam dynamics of beams with arbitrary distribution and ellipticity, in e+ e− colliders. We find that the dynamics, and hence the achievable luminosity, is limited by two kinds of coherent phenomena—the flip-flop effect and period-n beam-size oscillations. While both solutions coexist, the former are typically stronger and occur at lower currents than the latter. These results are in broad agreement with experimental observations, and suggest that greater care needs to be taken in the choice of operating parameters of the high-luminosity B factories that are presently under construction.