Trigger efficiencies at BESⅢ

N. Berger; ZHU Kai; LIU Zhen-An; JIN Da-Peng; XU Hao; GONG Wen-Xuan; WANG Ke; CAO Guo-Fu

doi:10.1088/1674-1137/34/12/001

Chinese Physics C> 2010, Vol. 34> Issue(12) : 1779-1784 DOI: 10.1088/1674-1137/34/12/001

Trigger efficiencies at BESⅢ

Abstract
HTML
Reference
Related

PDF

Abstract：
Trigger efficiencies at BESⅢ were determined for both the J/ψ and ψ′ data taking of 2009. Both dedicated runs and physics datasets are used; efficiencies are presented for Bhabha-scattering events, generic hadronic decay events involving charged tracks, dimuon events and ψ′→π⁺π^－J/ψ, J/ψ→l⁺l^－ events. The efficiencies are found to lie well above 99% for all relevant physics cases, thus fulfilling the BESⅢ design specifications.

References

[1]

The BESⅢ collaboration.Design and Construction of the BESⅢ Detector,2009.0911.4960[2] LIU Z A.Preliminary Design of BES-Ⅲ Trigger System,Prepared for CHEP'01:Computing in High-Energy Physics and Nuclear.Beijing,China,3-7 Sep 2001[3] YU Z et al.HEP NP,1995,19:1062 (in Chinese)[4] HUANG Get al.HEP NP,2001,25:889 (in Chinese)[5] LIU Bet al.HEP NP,2001,25:1 (in Chinese)[6] SHI X et al.HEP NP,2004,28:982 (in Chinese)

[1]	Min Li , Lei Zhao , Jin-Xin Liu , Yi-Ming Lu , Shu-Bin Liu , Qi An . The trigger system for the external target experiment in the HIRFL cooling storage ring. Chinese Physics C, 2016, 40(8): 086102. doi: 10.1088/1674-1137/40/8/086102
[2]	LIU Pei-Lian , FANG Shuang-Shi , LOU Xin-Chou . Strange quarkonium states at BESⅢ. Chinese Physics C, 2015, 39(8): 082001. doi: 10.1088/1674-1137/39/8/082001
[3]	SUN Xiao-Dong , HU Ji-Feng , ZHAO Hai-Sheng , JI Xiao-Bin , WANG Yi-Fang , ZHENG Yang-Heng , LIU Bei-Jiang . Online data quality monitoring system at BESⅢ. Chinese Physics C, 2012, 36(7): 622-627. doi: 10.1088/1674-1137/36/7/010
[4]	YAN Liang , HE Kang-Lin , LI Wei-Guo , BIAN Jian-Ming , FU Cheng-Dong , HUANG Bin , LIU Ying , NING Fei-Peng , SUN Sheng-Sen , XU Min , ZHANG Jian-Yong , ZHU Yong-Sheng , . Lagrange multiplier method used in BESⅢ. Chinese Physics C, 2010, 34(2): 204-209. doi: 10.1088/1674-1137/34/2/009
[5]	Klaus Götzen (on behalf of the BES-Ⅲ collaboration) . Recent results on hadron spectroscopy from BES. Chinese Physics C, 2010, 34(6): 638-643. doi: 10.1088/1674-1137/34/6/005
[6]	LIU Bei-Jiang , for BES . Recent BES results on hadron spectroscopy. Chinese Physics C, 2010, 34(9): 1303-1306. doi: 10.1088/1674-1137/34/9/029
[7]	PING Rong-Gang (for BES collaboration) . Charmonium results from BES. Chinese Physics C, 2010, 34(6): 626-631. doi: 10.1088/1674-1137/34/6/003
[8]	LIANG Yu-Tie , LIU Kun , YOU Zheng-Yun , MAO Ya-Jun , LI Wei-Dong . Track reconstruction in the BESⅢ muon counter. Chinese Physics C, 2009, 33(8): 666-672. doi: 10.1088/1674-1137/33/8/013
[9]	WANG Ji-Ke , MAO Ze-Pu , BIAN Jian-Ming , CAO Guo-Fu . BESⅢ track fitting algorithm. Chinese Physics C, 2009, 33(10): 870-879. doi: 10.1088/1674-1137/33/10/010
[10]	PING Rong-Gang . Event generators at BESⅢ. Chinese Physics C, 2008, 32(8): 599-602. doi: 10.1088/1674-1137/32/8/001
[11]	GUO Yun-Jun , HE Kang-Lin . Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C, 2007, 31(11): 1050-1055.
[12]	MA Xu-Bo , FANG Shuang-Shi , ZHU Yu-Can , LU GoNG-Ru , YANG Hong-Xun . Search for Exotic States at BESⅢ. Chinese Physics C, 2005, 29(4): 329-336.
[13]	XU Hao , LIU Zhen-An , JIN Da-Peng , WANG Da-Yong , ZHAO Di-Xin , GUO Ya-Nan . Physical Design of Main Drift Chamber Trigger for BESⅢ Experiment. Chinese Physics C, 2005, 29(4): 376-382.
[14]	YOU Zheng-Yun , MAO Ya-Jun , ZHANG Jia-Wen . Research on Identification of μ,π with BESⅢ μ Ιdentifier. Chinese Physics C, 2004, 28(9): 977-981.
[15]	LI Shu-Min , YUAN Chang-Zheng , HE Kang-Lin , FANG Shuang-Shi , WANG Wen-Feng , LU Feng , SHEN Xiao-Yan . Study of Photon Detection Efficiency at BESⅡ. Chinese Physics C, 2004, 28(8): 859-865.
[16]	LIU Bin , GUO Ya-Nan , ZHAO Di-Xin , MA En-Cheng , LI De , ZHANG Yue-Yuan , CHEN Xin-Dong . Simulation of BES Trigger. Chinese Physics C, 2001, 25(1): 1-5.
[17]	Mao Zepu , Wang Jun , Ye Shizhang , Lan Huibin , Sun Shijun , Liu Huaimin , Liu Qi , Liu Jing , Li Weiguo , Li Peiqin , Chen Shaomin , Chen Guangpei , Qiu Jinfa , Shong Xiaofei , Fang Xiaoling , Zhou Li , Rong Gang , Zhang Shaoqiog , Zhang Jiawen , Han Ying , Xue Shengtian , Pan linajun . BES Data Off-line Calibration. Chinese Physics C, 1996, 20(12): 1073-1081.
[18]	Yu Zhongqiang , Zhao Dixin , Gu Jianhui , Guo Yanan , Zhang Bingyun , Ding Huiliang , Li Weidong . Trigger Efficiency Measurement of BES. Chinese Physics C, 1995, 19(12): 1062-1067.
[19]	Jia Huanyu , Cao Zhen , Zhang Huimin . Meteorological Effects on the Trigger Rate of Air Showers Observed with the Tibet Air Shower Array. Chinese Physics C, 1994, 18(S3): 235-242.
[20]	Ni Hutting , Zhou Haushi , Jiang Chunhua , Guo Hongfei , Xu Jiangou , Zhu Qiming , Wang Fang , Liu Wei , Li Jiahua . The Luminosity Monitor of Beijing Spectrometer (BES). Chinese Physics C, 1990, 14(S3): 237-248.

Access

Get Citation

N. Berger, ZHU Kai, LIU Zhen-An, JIN Da-Peng, XU Hao, GONG Wen-Xuan, WANG Ke and CAO Guo-Fu. Trigger efficiencies at BESⅢ[J]. Chinese Physics C, 2010, 34(12): 1779-1784. doi: 10.1088/1674-1137/34/12/001

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2010-03-10
Revised: 2010-04-12

Article Metric

Article Views(3009)
PDF Downloads(585)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Trigger efficiencies at BESⅢ

Received Date: 2010-03-10
Accepted Date: 2010-04-12
Available Online: 2010-12-05

Abstract:

Trigger efficiencies at BESⅢ were determined for both the J/ψ and ψ′ data taking of 2009. Both dedicated runs and physics datasets are used; efficiencies are presented for Bhabha-scattering events, generic hadronic decay events involving charged tracks, dimuon events and ψ′→π⁺π^－J/ψ, J/ψ→l⁺l^－ events. The efficiencies are found to lie well above 99% for all relevant physics cases, thus fulfilling the BESⅢ design specifications.