Study on Multifractal Structure of the Distribution Fluctuation of Secondary Perticles in the Core Region of EAS

KONG FanMin; FENG CunFeng; ZHANG XueYao; XUE Liang; FU Yu; LI JinYu; ZHANG NaiJian; HE Mao; WANG ChengRui; TAN YouHeng

Chinese Physics C> 2000, Vol. 24> Issue(4) : 279-284

Study on Multifractal Structure of the Distribution Fluctuation of Secondary Perticles in the Core Region of EAS

High Energy Physics Group,Shandong University, Jinan 250100, China1 Institute of High Energy Physics, The Chinese Academy of Sciences,Beijing 100079, China

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Abstract：
The differences of space distributions and time profiles between the γ-ray and proton induced shower particles are studied using Monte Carlo simulation data. The multifractal analysis is performed with the G-moment method for the distribution fluctuation of secondary particles near the core of showers induced by γ-rays and protons. From the spectrum functions of γ and proton events, it is seen that this method can be adopted as a basis for the γ/proton separation. It is shown that the separation of γ and proton can be achieved with a good efficiency in the energy region of 1—10TeV.

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KONG FanMin, FENG CunFeng, ZHANG XueYao, XUE Liang, FU Yu, LI JinYu, ZHANG NaiJian, HE Mao, WANG ChengRui and TAN YouHeng. Study on Multifractal Structure of the Distribution Fluctuation of Secondary Perticles in the Core Region of EAS[J]. Chinese Physics C, 2000, 24(4): 279-284.

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Received: 1999-03-09
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 Multifractal Structure of the Distribution Fluctuation of Secondary Perticles in the Core Region of EAS

Corresponding author: KONG FanMin,

High Energy Physics Group,Shandong University, Jinan 250100, China1 Institute of High Energy Physics, The Chinese Academy of Sciences,Beijing 100079, China

Received Date: 1999-03-09

Accepted Date: 1900-01-01

Available Online: 2000-04-05

Abstract: The differences of space distributions and time profiles between the γ-ray and proton induced shower particles are studied using Monte Carlo simulation data. The multifractal analysis is performed with the G-moment method for the distribution fluctuation of secondary particles near the core of showers induced by γ-rays and protons. From the spectrum functions of γ and proton events, it is seen that this method can be adopted as a basis for the γ/proton separation. It is shown that the separation of γ and proton can be achieved with a good efficiency in the energy region of 1—10TeV.

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Study on Multifractal Structure of the Distribution Fluctuation of Secondary Perticles in the Core Region of EAS

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