European Physical Journal C: Particles and Fields (Sep 2024)

Offline data processing system of the BESIII experiment

  • Jiaheng Zou,
  • Weidong Li,
  • Qiumei Ma,
  • Zhengyun You,
  • Shengsen Sun,
  • Ziyan Deng,
  • Xiaobin Ji,
  • Alexy Zhemchugov,
  • Wenxing Fang,
  • Chengdong Fu,
  • Kanglin He,
  • Xingtao Huang,
  • Tao Lin,
  • Chunxiu Liu,
  • Huaimin Liu,
  • Zepu Mao,
  • Jinfa Qiu,
  • Yongzhao Sun,
  • Shuopin Wen,
  • Linghui Wu,
  • Liangliang Wang,
  • Ye Yuan,
  • Yao Zhang,
  • Xiaomei Zhang,
  • Guang Zhao

DOI
https://doi.org/10.1140/epjc/s10052-024-13241-3
Journal volume & issue
Vol. 84, no. 9
pp. 1 – 9

Abstract

Read online

Abstract The BESIII experiment has been operating since 2009 and has received several upgrades, to study the $$\tau $$ τ -charm physics utilizing the BEPCII accelerator. The BEPCII is a double-ring multi-bunch collider with a luminosity of $$1 \times 10^{33} \, {\text {cm}}^{-2} \, {\text {s}}^{-1}$$ 1 × 10 33 cm - 2 s - 1 optimized at a center-of-mass (cms) energy of $$2 \times 1.89$$ 2 × 1.89 GeV. The rich physics topics, long lifetime and the large volume of data present challenges to offline data processing. This paper describes the design and implementation of the offline software system to meet the requirements and challenges of BESIII, including offline software architecture, geometry management, database management, event data model and tag-based analysis.