New physics searches at the ILC positron and electron beam dumps

Journal of High Energy Physics

Daiki Ueda¹  Kento Asai²  Yasuhito Sakaki³  Sho Iwamoto⁴ 

[1] Department of Physics, Faculty of Science, University of Tokyo, Bunkyo-ku, 113-0033, Tokyo, Japan;Center for High Energy Physics, Peking University, 100871, Beijing, China;Department of Physics, Faculty of Science, University of Tokyo, Bunkyo-ku, 113-0033, Tokyo, Japan;Department of Physics, Faculty of Science, Saitama University, Sakura-ku, 338-8570, Saitama, Japan;High Energy Accelerator Research Organization (KEK), Tsukuba, 305-0801, Ibaraki, Japan;Institute for Theoretical Physics, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117, Budapest, Hungary;

关键词: Beyond Standard Model;    Fixed target experiments;    Exotics;    Particle and resonance production;   

DOI  :  10.1007/JHEP09(2021)183

来源: Springer

【 摘 要 】

We study capability of the ILC beam dump experiment to search for new physics, comparing the performance of the electron and positron beam dumps. The dark photon, axion-like particles, and light scalar bosons are considered as new physics scenarios, where all the important production mechanisms are included: electron-positron pair-annihilation, Primakoff process, and bremsstrahlung productions.We find that the ILC beam dump experiment has higher sensitivity than past beam dump experiments, with the positron beam dump having slightly better performance for new physics particles which are produced by the electron-positron pair-annihilation.

【 授权许可】

CC BY