Phenomenon of Energy Concentration in Super-High Energy γ-Hadron Families

DAI ZhiQiang; XUE Liang; LI JinYu; ZHANG XueYao; FENG CunFeng; FU Yu; LI Jie; CAO PeiYuan; ZHANG NaiJian; HE Mao; WANG ChengRui; REN JingRu; LU SuiLing

Chinese Physics C> 2000, Vol. 24> Issue(10) : 885-891

Phenomenon of Energy Concentration in Super-High Energy γ-Hadron Families

Department of Electronic Engineering, Shandong University,Jinan 250100,China2 Department of Physics, Shandong University,Ji'nan 250100,China3 Institute of High Energy Physics,CAS,Beijing 100039,China

Abstract
HTML
Reference
Related

PDF

Abstract：
The family events observed with iron emulsion chambers at Mt. Kanbala are analyzed and compared with the simulations by the COSMOS code and CORSIKA code respectively. A detailed study on the production of super-high energy γ-hadron families with energy concentration behavior is carried out. The preliminary conclusions are: 1) the energy concentration behavior of super-high energy γ-hadron families is the external embodiment of high energy central shower clusters contained in the families. 2) the mean lateral spread of these clusters is about 0.37cm. 3) the frequency of this phenomenon appeared under the conditions of R≤10mm and χ₁₀≥90% is (20.5±3.1)%. 4) compared to the COSMOS code based on the phenomenological multicluster model,the simulation by the CORSIKA code that adopts SIBYLL model is closer to the analytical results of experiment.

References

[1]

. Barazei L T,Borisov A S,Cherdyntseva K V et al.Nucl.Phys.,1992,B370:3652. Tamada M.Proc.23rd ICRC,Calgary,1993,4:803. Zhdanov G B,Denisova V G.Proc.24th ICRC,Rome,1995,1:1934. Hasegawa S,Tamada M.Nucl.Phys.,1996,B474:1415. REN JingRu et al.High Energy Phys.and Nucl.Phys.(in Chinese),1990,14:961(任敬儒等,高能物理与核物理,1990,14:961)6. Shibata M,Yuda T,Taira K et al.IL Nuovo Cimento,1977,39B:3027. Kasahara K.Proc.24th ICRC,Rome,1995,1:3998. FletcherRSetal.Phys.Rev.,1994,D50:57109. Heck D.Proc.25th ICRC,Durban,1997,6:24510. LUO GuangXuan et al.High Energy Phys.and Nucl.Phys.(in Chinese),1995,19:769(罗光宣等.高能物理与核物理,1995,19:769)

[1]	HUANG Wen-Xue , WANG Yue , ZHU Zhi-Chao , TIAN Yu-Lin , XU Hu-Shan , SUN Zhi-Yu , XIAO Guo-Qing , ZHAN Wen-Long . Experimental Study of the High-Voltage Breakdown and Simulations for the RFQ Cooler and Buncher RFQ1L. Chinese Physics C, 2006, 30(S2): 261-264.
[2]	SHEN Shui-Fa , YU Xiao-Han . Decay of ⁸³Sr and Discussion of Its Daughter's Band Structures. Chinese Physics C, 2004, 28(S1): 78-80.
[3]	ZHOU Yong-Zhao , LIANG Hao , XUE Jun-Dong , CHEN Yi-Xin , YANG Tao , GONG Da-Tao , JIN Ge , YU Xiao-Qi . An Online Program for Monitoring KLOE Experiment. Chinese Physics C, 2002, 26(6): 620-625.
[4]	Yang Jianjun , Ma Boqiang , Li Guanglie . Non-perturbative Quark Propagator and the Study of the Non-trivial Q² Dependence in the Nucleon Structure Functions. Chinese Physics C, 1997, 21(2): 146-156.
[5]	Yu Hong , Shen Qixing , Zhang Lin . Angular Distribution of Process e⁺e^－→τ⁺τ^－,τ^－→a₁υτ,a₁→ρπ and Characteristics of a₁ Meson. Chinese Physics C, 1994, 18(7): 583-590.
[6]	BES Collaboration . Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.
[7]	SANG Jian-Ping , LIU Chao-Shan , LIU Yong . Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88～90. Chinese Physics C, 1991, 15(2): 150-157.
[8]	HOU Ren-Chang , ZHAO Xuan . QUADRUPOLE-OCTUPOLE TWO-PHONON EXCITATIONS IN INELASTIC SCATTERING. Chinese Physics C, 1983, 7(2): 236-244.
[9]	Sa Ben-hao , Zhang Xi-zhen , Li Zhu-xia , Shi Yi-jin . A PRIMARY RESEARCH OF THE PHONON RENORMALIZATION OF NUCLEAR FIELD THEORY. Chinese Physics C, 1980, 4(3): 398-400.

Access

Get Citation

DAI ZhiQiang, XUE Liang, LI JinYu, ZHANG XueYao, FENG CunFeng, FU Yu, LI Jie, CAO PeiYuan, ZHANG NaiJian, HE Mao, WANG ChengRui, REN JingRu and LU SuiLing. Phenomenon of Energy Concentration in Super-High Energy γ-Hadron Families[J]. Chinese Physics C, 2000, 24(10): 885-891.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1999-10-15
Revised: 1900-01-01

Article Metric

Article Views(3696)
PDF Downloads(621)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Phenomenon of Energy Concentration in Super-High Energy γ-Hadron Families

Corresponding author: DAI ZhiQiang,

Department of Electronic Engineering, Shandong University,Jinan 250100,China2 Department of Physics, Shandong University,Ji'nan 250100,China3 Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date: 1999-10-15
Accepted Date: 1900-01-01
Available Online: 2000-10-05

Abstract: The family events observed with iron emulsion chambers at Mt. Kanbala are analyzed and compared with the simulations by the COSMOS code and CORSIKA code respectively. A detailed study on the production of super-high energy γ-hadron families with energy concentration behavior is carried out. The preliminary conclusions are: 1) the energy concentration behavior of super-high energy γ-hadron families is the external embodiment of high energy central shower clusters contained in the families. 2) the mean lateral spread of these clusters is about 0.37cm. 3) the frequency of this phenomenon appeared under the conditions of R≤10mm and χ₁₀≥90% is (20.5±3.1)%. 4) compared to the COSMOS code based on the phenomenological multicluster model,the simulation by the CORSIKA code that adopts SIBYLL model is closer to the analytical results of experiment.