Search for 10 TeV Gamma-Ray Bursts with the Tibet Air Shower Array

Ding Linkai; Dai Benzhong; Feng Zhenyong; Huang Qing; Huo Anxiang; Jia Huanyu; Labaciren; Mei Dongming; Meng Lie; Meng Xianru; Mu Jun; Ren Jingru; Shi Zhizheng; Tan Youheng; Wang Hui; Yu Guangce; Zhaxiciren; Zhaxisanzhu; Zhou Wende; Zhang Chunsheng; Zhang Huimin

Chinese Physics C> 1997, Vol. 21> Issue(S3) : 9-16

Search for 10 TeV Gamma-Ray Bursts with the Tibet Air Shower Array

1. Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing, China;
2. Cosmic Ray Institute, Tibet University, Lhasa, China;
3. Department of Physics, South West Jiaotong University, Chengdu, China;
4. Department of Physics, Yunnan University, Kunming, China

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Abstract：
A search for gamma-ray bursts at the 10 TeV energy region was made using data of the Yangbajing air shower experiment in Tibet. About 4×10⁸ events were analyzed to search for shower clusters appearing in a given time interval and a given small sky bin. An equal-zenith angle method is used to estimate the background. Some clusters show the excess to the background but with less significance as the evidence of gamma-ray bursts. The much-higher sensitivity of the Yangbajing Phase Ⅱ array to the detection of the 10 TeV gamma-ray bursts is discussed.
- cosmic rays ,
- air showers ,
- gamma-ray bursts
[1] CHANG KONG-LIANG . DIMENSIONAL METHOD TO SOLVE THE DIFFUSION CONVECTION EQUATION OF SOLAR COSMIC RAYS. Chinese Physics C, 1978, 2(3): 200-210.
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Ding Linkai, Dai Benzhong, Feng Zhenyong, Huang Qing, Huo Anxiang, Jia Huanyu, Labaciren, Mei Dongming, Meng Lie, Meng Xianru, Mu Jun, Ren Jingru, Shi Zhizheng, Tan Youheng, Wang Hui, Yu Guangce, Zhaxiciren, Zhaxisanzhu, Zhou Wende, Zhang Chunsheng and Zhang Huimin. Search for 10 TeV Gamma-Ray Bursts with the Tibet Air Shower Array[J]. Chinese Physics C, 1997, 21(S3): 9-16.

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Received: 1996-08-06

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Supported by the National Natural Science Foundation of China and the Chinese Academy of Sciences.

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沈阳化工大学材料科学与工程学院沈阳 110142

Search for 10 TeV Gamma-Ray Bursts with the Tibet Air Shower Array

1. Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing, China;
2. Cosmic Ray Institute, Tibet University, Lhasa, China;
3. Department of Physics, South West Jiaotong University, Chengdu, China;
4. Department of Physics, Yunnan University, Kunming, China

Received Date: 1996-08-06

Fund Project: Supported by the National Natural Science Foundation of China and the Chinese Academy of Sciences.

Abstract: A search for gamma-ray bursts at the 10 TeV energy region was made using data of the Yangbajing air shower experiment in Tibet. About 4×10⁸ events were analyzed to search for shower clusters appearing in a given time interval and a given small sky bin. An equal-zenith angle method is used to estimate the background. Some clusters show the excess to the background but with less significance as the evidence of gamma-ray bursts. The much-higher sensitivity of the Yangbajing Phase Ⅱ array to the detection of the 10 TeV gamma-ray bursts is discussed.