Nonlinearity optimization for the lattice of SPPC collider ring  

作　　者：Haocheng Xu Yiwei Wang Jie Gao Yukai Chen Jingyu Tang Zhiyuan Li 

机构地区：[1]Key Laboratory of Particle Acceleration Physics and Technology,Institute of High Energy Physics,Chinese Academy of Sciences,19B Yuquan Road,Beijing,100049,China [2]University of Chinese Academy of Sciences,19A Yuquan Road,Beijing,100049,China [3]Spallation Neutron Source Science Center,1 Zhongziyuan Road,Dongguan,523803,Guangdong,China [4]University of Science and Technology of China,No.96 JinZhai Road Baohe District,Hefei,230026,Anhui,China

出　　处：《Radiation Detection Technology and Methods》2024年第4期1542-1558,共17页辐射探测技术与方法(英文)

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB0530000);CAS Center for Excellence in Particle Physics(CCEPP).

摘　　要：Purpose The proposed super proton–proton collider(SPPC)is an energy frontier machine that will possess the capability to explore a significantly broader range of new physics models.The nonlinearity optimization of the SPPC collider ring lattice is crucial in achieving high peak luminosity and beam lifetime.Methods The resonance driving terms and chromatic function of the SPPC collider ring lattice are optimized through Lie map analysis and frequency map analysis.Results The linear lattice of the SPPC collider ring at collision energy is presented.With nonlinearity optimization,the lattice aberration and the dynamic aperture of the entire ring have been improved.Conclusion Key resonance driving terms and chromatic functions of the SPPC lattice have been significantly optimized.With Landau octupoles and beam–beam effect,the dynamic aperture of SPPC collider ring exceeds 50\sigma in both planes.

关 键 词：SPPC Lattice design Dynamic aperture 

分 类 号：O57[理学—粒子物理与原子核物理]