Sun Yong-Zhao

BESIII barrel time-of-flight (TOF) calibration using cosmic ray data

Jie Yan, Li Cheng, He Kang-Lin, Qi An et autres

The principle of the method for the BESIII TOF calibration using cosmic ray data without magnetic field are reported in this paper. After applying calibration constants, the single-end readout time resolution could reach about 150 ps, and the time resolution for one …

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Calibration of RPC-based muon detector at BESIII

Weidong Li, Liang Yu-Tie, Bian Jian-Ming, Cao Guo-Fu et autres

The calibration algorithm for RPC-based muon detector at BESIII has been developed. The calibration method, calibration error and algorithm performance are studied. The primary results of efficiency and noise at layer, module and strip levels have been calibrated with cosmic ray data. …

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BESIII track fitting algorithm

Wang Ji-Ke, Mao Ze-Pu, Bian Jian-Ming, Cao Guo-Fu et autres

BESIII track fitting algorithm, Wang Ji-Ke, Mao Ze-Pu, Bian Jian-Ming, Cao Guo-Fu, Cao Xue-Xiang, Chen Shen-Jian, Deng Zi-Yan, Fu Cheng-Dong, Gao Yuan-Ning, He Kang-Lin, He Miao, Hua Chun-Fei, Huang Bin, Huang Xing-Tao, Ji Xiao-Bin, Li Fei, Li Bai-Bo, Li Wei-Dong, Liang Yu-Tie, …

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Track reconstruction in the BESIII muon counter

Liang Yu-Tie, Kun Liu, Weidong Li, Bian Jian-Ming et autres

The reconstruction algorithm for BESIII Muon Counter, MucRecAlg, is developed with the object-oriented language C++ in BESIII offline software environment. MucRecAlg consists of the following functions: to find track seeds either from extrapolation of tracks in the main drift chamber or from …

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Study of BESIII MUC offline software with cosmic-ray data

Liang Yu-Tie, Weidong Li, Bian Jian-Ming, Cao Guo-Fu et autres

Cosmic-ray data of 90 M events have been collected and used for calibration, alignment as well as detector tuning. A special tracking algorithm for the BESIII muon counter is developed and verified with Monte–Carlo simulation and then further confirmed with the cosmic-ray …

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Decay vertex reconstruction and 3-dimensional lifetime determination at BESIII

Min Xu, He Kang-Lin, Ziping Zhang, Bian Jian-Ming et autres

This paper focuses mainly on the vertex reconstruction of resonance particles with a relatively long lifetime such as K 0 S , Λ, as well as on lifetime measurements using a 3-dimensional fit. The kinematic constraints between the production and decay vertices …

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Software alignment of the BESIII main drift chamber using the Kalman Filter method

Wang Ji-Ke, Mao Ze-Pu, Bian Jian-Ming, Cao Guo-Fu et autres

Software alignment is quite important for a tracking detector to reach its ultimate position accuracy and momentum resolution. We developed a new alignment algorithm for the BESIII Main Drift Chamber using the Kalman Filter method. Two different types of data which are …

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BESIIIでの崩壊バーテックス再構成と三次元寿命の決定【Powered by NICT】

Min Xu, HE Kang-Lin, Ziping Zhang, Y. F. Wang et autres

Kalmanフィルタ法を用いたBESIII主ドリフトチェンバのソフトウェアアラインメント【Powered by NICT】

Wang Ji-Ke, Mao Ze-Pu, Bian Jian-Ming, Cao Guo-Fu et autres

BESIIIμ粒子計数管における飛跡再構成【Powered by NICT】

Liang Yu-Tie, Liu Kun, Z. You, Mao Ya-Jun et autres

宇宙線データを用いたBESIII MUCオフラインソフトウェアの研究【Powered by NICT】

Liang Yu-Tie, Mao Ya-Jun, Z. You, Weidong Li et autres

A simulation study on the measurement of D 0 -D 0 mixing parameter y at BESIII

Yangheng Zheng, Weidong Li, Bian Jian-Ming, Cao Guo-Fu et autres

We established a method on measuring the D 0 - 0 mixing parameter y for BESIII experiment at the BEPCII e + e + collider. In this method, the doubly tagged ψ(3770) → D 0 0 events, with one D decays to …

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