Inclusive Υ(1S,2S,3S)photoproduction at the CEPC

• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: PARTICLES AND FIELDS
• 页码范围: 240-245
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1137/abce11

摘要

Inclusive Υ(1S,2S,3S)photoproduction at the future Circular-Electron-Positron-Collider(CEPC)is studied,using the non-relativistic quantum chromodynamics(NRQCD)factorization formalism.Including the con-tributions from both direct and resolved photons,we present different distributions for the Υ(1S,2S,3S)production.Our results suggest that there will be considerable events,implying that well measurements of the Υ photoproduc-tion can be performed to further study heavy quarkonium physics at electron-positron colliders,in addition to had-ron colliders.This supplemental study is very important for clarifying the current situation regarding the heavy quarkonium production mechanism.