Chinese Physics C > 2004, Vol. 28 > Issue(9): 914-917

Study on the Performance of YBJ Preliminary Carpet

Department of Physics,Yunnan University,Kunming 650091,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

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Abstract：
The Sino-Italian collaboration YBJ-ARGO experiment is under construction at the Yang Bajing High Altitude Cosmic Ray Laboratory(Tibet,China,4300m a.s.l.,606g/cm2).About 693m2 of preliminary carpet detector have been instrumented and put into operation for calibration runs devoted to test the performance of the individual components and their integrated operation.Events collected with a "shower mode" trigger have been recorded to check the consistency of physics data.The performance and characteristics of a preliminary carpet detector are analyzed using its test run data at the high altitude conditions.Shower reconstruction algorithms are described together with the results after time offset correction.Results of the test run show the importance of the time correction for data analysis,and some results concerning detector calibration,azimuth angle distribution,zenith angle distribution and angular resolution are presented.

References

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LIU Kun, HE Hui-Hai, CHEN Xin, LU Hong, MU Jun, SHEN Pei-Ruo, TAN You-Heng, WU Chao-Yong, YANG Qun-Yu, ZHANG Hui-Min and ZHANG Yong. Study on the Performance of YBJ Preliminary Carpet[J]. Chinese Physics C, 2004, 28(9): 914-917.

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Received: 2004-02-12
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Study on the Performance of YBJ Preliminary Carpet

Corresponding author:LIU Kun,

Department of Physics,Yunnan University,Kunming 650091,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date:2004-02-12

Accepted Date:1900-01-01

Available Online:2004-09-05

Abstract:The Sino-Italian collaboration YBJ-ARGO experiment is under construction at the Yang Bajing High Altitude Cosmic Ray Laboratory(Tibet,China,4300m a.s.l.,606g/cm2).About 693m2 of preliminary carpet detector have been instrumented and put into operation for calibration runs devoted to test the performance of the individual components and their integrated operation.Events collected with a "shower mode" trigger have been recorded to check the consistency of physics data.The performance and characteristics of a preliminary carpet detector are analyzed using its test run data at the high altitude conditions.Shower reconstruction algorithms are described together with the results after time offset correction.Results of the test run show the importance of the time correction for data analysis,and some results concerning detector calibration,azimuth angle distribution,zenith angle distribution and angular resolution are presented.

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Study on the Performance of YBJ Preliminary Carpet

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通讯作者:陈斌, bchen63@163.com

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