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:10.1140/epjc/s10052-024-13241-3

2024 Impact factor 4.8

Particles and Fields

Open Access

Eur. Phys. J. C (2024) 84: 937
https://doi.org/10.1140/epjc/s10052-024-13241-3

Regular Article - Experimental Physics

Offline data processing system of the BESIII experiment

Jiaheng Zou¹, Weidong Li¹, Qiumei Ma¹, Zhengyun You³, Shengsen Sun¹^,2, Ziyan Deng¹^f, Xiaobin Ji¹^,2, Alexy Zhemchugov⁵, Wenxing Fang¹, Chengdong Fu¹, Kanglin He¹, Xingtao Huang⁴, Tao Lin¹, Chunxiu Liu¹, Huaimin Liu¹, Zepu Mao¹, Jinfa Qiu¹, Yongzhao Sun¹, Shuopin Wen¹, Linghui Wu¹, Liangliang Wang¹, Ye Yuan¹^,2, Yao Zhang¹, Xiaomei Zhang¹ and Guang Zhao¹

¹ Institute of High Energy Physics, 100049, Beijing, China
² University of Chinese Academy of Sciences, 100049, Beijing, China
³ Sun Yat-Sen University, 510275, Guangzhou, China
⁴ Shandong University, 266237, Qingdao, China
⁵ Joint Institute for Nuclear Research, 141980, Dubna, Moscow region, Russia

^f dengzy@ihep.ac.cn

Received: 29 April 2024
Accepted: 13 August 2024
Published online: 17 September 2024

Abstract

The BESIII experiment has been operating since 2009 and has received several upgrades, to study the $τ$ $\tau$ -charm physics utilizing the BEPCII accelerator. The BEPCII is a double-ring multi-bunch collider with a luminosity of $1 \times 10^{33} {cm}^{- 2} s^{- 1}$ $1 \times 10^{33} \, {\text {cm}}^{-2} \, {\text {s}}^{-1}$ optimized at a center-of-mass (cms) energy of $2 \times 1.89$ $2 \times 1.89$ 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.

© The Author(s) 2024

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