Identification of Primary Cosmic Ray Particles Producing Big Gamma-Families in Emulsion Chambers

REN Jing-Ru; LU Sui-Ling; SU Shi; HUO An-Xiang; WANG Cheng-Rui; HE Mao; CAO Pei-Yuan; LI Jin-Yu; WANG Shi-Zhi; LI Guang-Ju; BAI Guang-Zhi; LIU Zhong-He; MU Jun

Chinese Physics C> 1992, Vol. 16> Issue(3) : 193-196

Identification of Primary Cosmic Ray Particles Producing Big Gamma-Families in Emulsion Chambers

Institute of High Energy Physics,Academia Sinica,Beijing 1000392 Department of Physics,Shandong University,Jinan 2501003 Department of Physics,Zhengzhou University,4500524 Chongqing Institute of Architecture,6300455 Department of Physics,Yunnan Universty,Kunming 650091

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Abstract：
The method of identification of primary cosmic ray particles of gamma families with visible energies above 800TeV has been investigated by using the results of Monte Carlo simulation.It has been found that,for proton primaries.the lateral distributions of certain parameters of gamma families may be taken as a reliable criterion.The experimental data of big gamma families obtained from Mt.Kanbala emulsion chamber experiment have been analyzed on the basis of this criterion.

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[1]	J. R. Ren et al., Phys. Rev., D38 (1988), 1404.[2] 任敬儒等，高能物理与核物理，8(1984)，136.[3] 任敬儒等，高能物理与核物理，9(1985),635.

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REN Jing-Ru, LU Sui-Ling, SU Shi, HUO An-Xiang, WANG Cheng-Rui, HE Mao, CAO Pei-Yuan, LI Jin-Yu, WANG Shi-Zhi, LI Guang-Ju, BAI Guang-Zhi, LIU Zhong-He, MU Jun and Identification of Primary Cosmic Ray Particles Producing Big Gamma-Families in Emulsion Chambers[J]. Chinese Physics C, 1992, 16(3): 193-196.

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

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