Study of neutral track measurement at BES

被引：0
|
作者：
Li, Haibo [1 ]
Yuan, Changzheng [1 ]
Li, Jin [1 ]
Li, Xinhua [1 ]
机构：
[1] Chinese Academy of Sciences, Institute of High Energy Physics, Beijing 100039, China
来源：
Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics | / 23卷 / 07期
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摘要：
The accuracy of neutral track measurement by Barrel Shower Counter (BSC) at BES is investigated. The photon energy in BSC is corrected using radiative Bhabha events and the error is determined. The error of photon position in BSC is also determined using the e+e- -> γγ(γ) process. All these results can be applied to BES analysis including neutral tracks, and the systematic error can be remarkably reduced when the kinematic fit is adopted.
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