Study of Neutral Track Measurement at BES

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Li Haibo, Yuan Changzheng, Li Jin and Li Xinhua. Study of Neutral Track Measurement at BES[J]. Chinese Physics C, 1999, 23(7): 607-615.
Li Haibo, Yuan Changzheng, Li Jin and Li Xinhua. Study of Neutral Track Measurement at BES[J]. Chinese Physics C, 1999, 23(7): 607-615. shu
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Received: 1998-05-13
Revised: 1900-01-01
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Study of Neutral Track Measurement at BES

    Corresponding author: Li Haibo,
  • Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

Abstract: The accuracy of neutral track measurement by Barrel Shower Counter (BSC) at BES is inveshgated. 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 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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