Source of second order chromaticity in RHIC

Luo, Y. ; Gu, X. ; Fischer, W. ; Trbojevic, D.

关键词: PERTURBATION THEORY;    QUADRUPOLES;    BROOKHAVEN RHIC relativistic heavy ion collider;   

DOI  :  10.2172/1004639
RP-ID  :  BNL--94605-2011-IR
PID  :  OSTI ID: 1004639
Others  :  R&D Project: KBCH139
Others  :  18064
Others  :  Other: KB0202011
Others  :  TRN: US1101052

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

In this note we will answer the following questions: (1) what is the source of second order chromaticities in RHIC? (2) what is the dependence of second order chromaticity on the on-momentum {beta}-beat? (3) what is the dependence of second order chromaticity on {beta}* at IP6 and IP8? To answer these questions, we use the perturbation theory to numerically calculate the contributions of each quadrupole and sextupole to the first, second, and third order chromaticities.