Chinese Physics C > 2012, Vol. 36 > Issue(8): 742-749 DOI: 10.1088/1674-1137/36/8/010

A photon conversion finder at BESⅢ

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Abstract：
A photon conversion finder (PCF) based on track information from the main drift chamber (MDC) of the Beijing Spectrometer (BES0) at the Beijing Electron Positron Collider (BEPC/) is developed. The validation of the PCF is done by reconstructing π ⁰and measuring the branching fraction of J/ψ →γη'. Using the developed PCF tool, we mapped the materials from the interaction point through the BEPCII beam pipe up to the inner wall of the MDC.

References

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XU Zhi-Rui and HE Kang-Lin. A photon conversion finder at BESⅢ[J]. Chinese Physics C, 2012, 36(8): 742-749. doi: 10.1088/1674-1137/36/8/010

XU Zhi-Rui and HE Kang-Lin. A photon conversion finder at BESⅢ[J]. Chinese Physics C, 2012, 36(8): 742-749. doi:10.1088/1674-1137/36/8/010 shu

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Received: 2011-11-01
Revised: 2011-12-12

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沈阳化工大学材料科学与工程学院沈阳 110142

A photon conversion finder at BESⅢ

XU Zhi-Rui
HE Kang-Lin

Received Date:2011-11-01
Accepted Date:2011-12-12
Available Online:2012-08-05

Abstract:A photon conversion finder (PCF) based on track information from the main drift chamber (MDC) of the Beijing Spectrometer (BES0) at the Beijing Electron Positron Collider (BEPC/) is developed. The validation of the PCF is done by reconstructingπ⁰and measuring the branching fraction of J/ψ →γη'. Using the developed PCF tool, we mapped the materials from the interaction point through the BEPCII beam pipe up to the inner wall of the MDC.