Search for 10TeV Gamma-Ray Bursts

Ding Linkai; Mu Jun; Wang Hui; Feng Zhenyong; Ren Jingru; Yu Guangce; Zhou Wende; Meng Xianru; Meng Lie; Zhang Chunsheng

Chinese Physics C> 1997, Vol. 21> Issue(8) : 673-679

Search for 10TeV Gamma-Ray Bursts

Institute of High Energy Physics,The Chinese Academy of Sciences Beijing 1000392 Cosmic Ray Institute Tibet University, Lhasa 8500003 Deparment of Applied Physics,South West Jiaotong University,Chengdu 6100314 Physics Laboratory,Yunnan University,Kunming 650091

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Abstract：
A search for gamma-ray bursts at 1OTeV energy region was made using data of Yangbajing air shower experiment in Tibet.About 4×10⁸ events were analysed to search for shower clusters appearing in a given time interval and a given small sky bin. An equal-zenith angle method is adopted to estimate the background. Some clusters show excesses over the background but with less significance as the evidence of gamma-ray bursts.The much higher sensitivity of the Yangbajing second phase array to the detection of 1OTeV gamma-ray bursts is discussed.

References

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G.L.Fishman.Gamma Ray Bursts,AIP Conf.Proc.,265（1992）13;G.L.Fishman et al,Astrophs.J. Suppl.Series,92（1994）229;C.A.Meegan et al,Nature,335（1992）143.[2]R M.Kippen,23th ICRC,OG1（1993）85;E.J,Schneid,Astron,and Astrophys,255（1992）L13:M.Varendorff;23th ICRC,OG1（1993）81.[3]K. Hurley,Gamma Ray Bursts,AIP Conf Proc.,265（1992）13.[4]M.Aglietta.Il Nuovo Cimento,15C（1992）441:D. E.Alexandreas et al,23th ICRC,OG1（1993）65:A.Borione et al.23th ICRC,OG1（1993）57:V.Connaughton et al,23th ICRC,OG1（1993）112.[5]M.Amenomori et al.,Phys. Rev. Lett .,69（1992）2468.[6]M.Amenomori et al,Phys. Rev.D47（1993）2675;M.Amenomori等，高能物理与核物理，17（1993）385.[7]M.Amenomori et al,Astronomy and Astrrophysics,311（1996）919.

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Ding Linkai, Mu Jun, Wang Hui, Feng Zhenyong, Ren Jingru, Yu Guangce, Zhou Wende, Meng Xianru, Meng Lie, Zhang Chunsheng, Search for 10TeV Gamma-Ray Bursts[J]. Chinese Physics C, 1997, 21(8): 673-679.

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Search for 10TeV Gamma-Ray Bursts

Corresponding author: Ding Linkai,

Institute of High Energy Physics,The Chinese Academy of Sciences Beijing 1000392 Cosmic Ray Institute Tibet University, Lhasa 8500003 Deparment of Applied Physics,South West Jiaotong University,Chengdu 6100314 Physics Laboratory,Yunnan University,Kunming 650091

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-08-05

Abstract: A search for gamma-ray bursts at 1OTeV energy region was made using data of Yangbajing air shower experiment in Tibet.About 4×10⁸ events were analysed to search for shower clusters appearing in a given time interval and a given small sky bin. An equal-zenith angle method is adopted to estimate the background. Some clusters show excesses over the background but with less significance as the evidence of gamma-ray bursts.The much higher sensitivity of the Yangbajing second phase array to the detection of 1OTeV gamma-ray bursts is discussed.