Chinese Physics C > 2000, Vol. 24 > Issue(1): 4-10

Measurement of Integrated Luminosity at ψ(2S) by Wide-Angle Bhabha Scattering

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China

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Abstract：
A method for measuring the integrated luminosity of the e ⁺e ^－colliding experiment by using the wide-angle Bhabha events at the center of mass energy of the ψ(2S) resonance is presented. The determination of the integrated luminosity for the ψ(2S) data collected by the BES detector at the BEPC collider shows the feasibility of the method.

References

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BES Collaboration. High Energy Phys. and Nucl. Phys. (in Chinese), 1995, 19:577(BES合作组.高能物理与核物理,1995,19:577) 2 BAI J Z et al (BES collaboration). Phys. Rev., 1998, D58:0920063 GU JianHui. Private Communication, 1998 4 WU JiMin, WANG Ping. Private Communication, 19945 Hilger E et al. Phys. Rev. Lett., 1975, 35:625;Lee R A. Radiative Decay of the Psi Prime to All–Photon Flual States PhD. Thesis, 1985, SLAC–282

[1]	GAO Tie-Jun,FENG Tai-Fu,ZHAO Shu-Min,KOU Li-Na. Comprehensive analysis of e⁺e^-→γη_c(2S). Chinese Physics C, 2013, 37(7): 073102.doi:10.1088/1674-1137/37/7/073102
[2]	M. Ablikim et al (BESⅡ collaboration). First evidence of ψ(2S)→Ω^-Ω⁺. Chinese Physics C, 2012, 36(11): 1040-1045.doi:10.1088/1674-1137/36/11/002
[3]	Henryk Czyz,Agnieszka Grzelinska. Strong and electromagnetic J/ψ and ψ(2S) decays into pion and kaon pairs. Chinese Physics C, 2010, 34(6): 855-859.doi:10.1088/1674-1137/34/6/039
[4]	WEI Dai-Hui,YANG Yong-Xu. Pseudoscalar mixing in J/ψ and ψ(2S) decay. Chinese Physics C, 2010, 34(12): 1785-1790.doi:10.1088/1674-1137/34/12/002
[5]	GUO Yu-Ping,PING Rong-Gang,XIAO Zhen-Jun. Study of ππ final state interactions in ψ(2S)→π⁺π^－J/ψ. Chinese Physics C, 2009, 33(4): 245-248.doi:10.1088/1674-1137/33/4/001
[6]	JIANG Xing-Yu,FANG Shuang-Shi,ZHU Yu-Can,LU Gong-Ru. Pseudoscalar-Meson Mixing in ψ(2S)→VP Decays. Chinese Physics C, 2006, 30(8): 724-730.
[7]	MO Xiao-Hu,ZHU Yong-Sheng,YUAN Chang-Zheng,FU Cheng-Dong,LI Gang. Determination of ψ(2S) Total Number by Inclusive Hadronic Decay. Chinese Physics C, 2004, 28(5): 455-462.
[8]	CHI Shao-Peng,MO Xiao-Hu,ZHU Yong-Sheng. Measurement of the Integrated Luminosity at s(1/2)=3.650,3.686 GeV for the BES Detector. Chinese Physics C, 2004, 28(11): 1135-1140.
[9]	WANG Ping,YUAN Chang-Zheng,MO Xiao-Hu. Contribution of One-Photon Annihilation at ψ(2S) in e⁺e^－Experiment. Chinese Physics C, 2003, 27(6): 465-473.
[10]	FU Cheng-Dong,MO Xiao-Hu,ZHANG Jia-Wen,ZHU Yong-Sheng,YUAN Chang-Zheng,DONG Xin,DONG Liao-Yuan. Fast Reconstruction of ψ(2S) Data and Corresponding Quality Supervision. Chinese Physics C, 2003, 27(8): 653-658.
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CUI XiangZong, GU YiFan, LI XinHua and HAN ShiWen. Measurement of Integrated Luminosity at ψ(2S) by Wide-Angle Bhabha Scattering[J]. Chinese Physics C, 2000, 24(1): 4-10.

CUI XiangZong, GU YiFan, LI XinHua and HAN ShiWen. Measurement of Integrated Luminosity at ψ(2S) by Wide-Angle Bhabha Scattering[J]. Chinese Physics C, 2000, 24(1): 4-10. shu

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Received: 1999-11-12
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of Integrated Luminosity at ψ(2S) by Wide-Angle Bhabha Scattering

Corresponding author:CUI XiangZong,

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China

Received Date:1999-11-12
Accepted Date:1900-01-01
Available Online:2000-01-05

Abstract:A method for measuring the integrated luminosity of the e⁺e^－colliding experiment by using the wide-angle Bhabha events at the center of mass energy of the ψ(2S) resonance is presented. The determination of the integrated luminosity for the ψ(2S) data collected by the BES detector at the BEPC collider shows the feasibility of the method.