Beam-beam observations in the Relativistic Heavy Ion Collider

Luo, Y.¹  Fischer, W.¹  White, S.¹ 

[1] Brookhaven National Laboratory (BNL), Upton, NY (United States)

关键词: Relativistic Heavy Ion Collider;   

DOI  :  10.2172/1222607
RP-ID  :  BNL--108394-2015-IR
PID  :  OSTI ID: 1222607
Others  :  R&D Project: KBCH139
Others  :  18031
Others  :  Other: KB0202011

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory has been operating since 2000. Over the past decade, thanks to the continuously increased bunch intensity and reduced ??*s at the interaction points, the maximum peak luminosity in the polarized proton operation has been increased by more than two orders of magnitude. In this article, we first present the beam-beam observations in the previous RHIC polarized proton runs. Then we analyze the mechanisms for the beam loss and emittance growth in the presence of beam-beam interaction. The operational challenges and limitations imposed by beam-beam interaction and their remedies are also presented. In the end, we briefly introduce head-on beam-beam compensation with electron lenses in RHIC.