On June 4, 2002, a centennial meeting was held in Beijing in commemoration of the late Professor Zhao Zhongyao (C.Y. Chao, 1902 -1998), a famous physicist and a pioneer of experimental physics and high-energy phys... On June 4, 2002, a centennial meeting was held in Beijing in commemoration of the late Professor Zhao Zhongyao (C.Y. Chao, 1902 -1998), a famous physicist and a pioneer of experimental physics and high-energy physics in China. ……展开更多
Primary vertex reconstruction is crucial to estimate the beam profile in collision experiments. We study the principle of an iterative process, called the Kalman filter method, and apply it to primary vertex reconstru...Primary vertex reconstruction is crucial to estimate the beam profile in collision experiments. We study the principle of an iterative process, called the Kalman filter method, and apply it to primary vertex reconstruction at BESⅢ. A Newton procedure to find the zero point of the distance function＇s gradient is used for primary vertex finding in 3-dimensional space. Results are obtained based on raw data at BESⅢ.展开更多
文摘 On June 4, 2002, a centennial meeting was held in Beijing in commemoration of the late Professor Zhao Zhongyao (C.Y. Chao, 1902 -1998), a famous physicist and a pioneer of experimental physics and high-energy physics in China. ……
基金Supported by CAS Knowledge Innovation Project (111087513811)
文摘Primary vertex reconstruction is crucial to estimate the beam profile in collision experiments. We study the principle of an iterative process, called the Kalman filter method, and apply it to primary vertex reconstruction at BESⅢ. A Newton procedure to find the zero point of the distance function＇s gradient is used for primary vertex finding in 3-dimensional space. Results are obtained based on raw data at BESⅢ.
