ELECTROMAGNETIC CASCADE SHOWERS WITH THE LPM EFFECT IN STANDARD ROCK INITIATED BY EXTREMELY HIGH-ENERGY (10(15) EV TO 10(21) EV) GAMMA-RAYS

被引：8

作者：

MISAKI, A

机构：

[1] Department of Physics, Faculty of Sciences, Saitama University, Urawa, 338

[2] The Institute for China-Japan Study, Tokyo, 181, Shinkawa 5-14-16, Mitaka

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA C-GEOPHYSICS AND SPACE PHYSICS | 1990年 / 13卷 / 04期

关键词：

detection and counting; Electromagnetic processes and properties of hadrons; Radiation measurement;

D O I：

10.1007/BF02507967

中图分类号：

学科分类号：

摘要：

High-energy neutrinos produce finally high-energy electromagnetic cascade showers. For the detectio of high-energy neutrinos, it is necessary to examine the behaviour of the electromagnetic cascade showers in the higher-energy region. It is well known that the LPM effect plays a decisive role in the electromagnetic cascade shower development at higher energies. In the present paper, the behaviour of electromagnetic cascade showers including the LPM effect (LPM showers) in standard rock is examined using the calculational technique developed by Fujimaki and Misaki. In order to clarify the characteristics of LPM showers, similar calculations are also carried out for cascade showers in the absence of the LPM effect (BH showers). Comparisons between the two different kinds of cascade showers are made over electron transition curves, track lengths and fractional dissipated energies. Finally, the strong deviation of LPM showers from the normal BH showers is emphasized. © 1990 Società Italiana di Fisica.

引用

页码：733 / 760

页数：28

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