Absolute photon energy calibration for the BESⅢ EMC

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BIAN Jian-Ming, HE Kang-Lin, LI Wei-Guo, HU Tao, FU Cheng-Dong, HUANG Bin, LIU Ying, NING Fei-Peng, SONG Wen-Bo, SUN Sheng-Sen, XU Min, YAN Jie, YAN Liang and Absolute photon energy calibration for the BESⅢ EMC[J]. Chinese Physics C, 2010, 34(1): 72-77. doi: 10.1088/1674-1137/34/1/013
BIAN Jian-Ming, HE Kang-Lin, LI Wei-Guo, HU Tao, FU Cheng-Dong, HUANG Bin, LIU Ying, NING Fei-Peng, SONG Wen-Bo, SUN Sheng-Sen, XU Min, YAN Jie, YAN Liang and Absolute photon energy calibration for the BESⅢ EMC[J]. Chinese Physics C, 2010, 34(1): 72-77.  doi: 10.1088/1674-1137/34/1/013 shu
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Received: 2009-03-02
Revised: 2009-03-26
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Absolute photon energy calibration for the BESⅢ EMC

    Corresponding author: BIAN Jian-Ming,

Abstract: The absolute energy calibration with photons from π0's for the BESⅢ EMC is discussed. Using 3 million hadronic events, the preliminary results are
presented. Precision of about 1% in the photon energy measurement is
obtained from crossing check using photons in ψ(2S)→γχc1,2(1P).

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