A Study on High-Energy Nuclear-Active Particles in Extensive Air Showers

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概要

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• A new type of detector called transition chamber was used to study high-energy nuclear-active particles (N-particles) above 10^<11> ev in extensive air showers (EAS) of size above 10^3. The differential energy spectrum of N-particles is shown to be represented by E_N^<-2.0±0.1d E_N up to 3.10^<13> ev irrespective of shower size. The lateral distribution of nuclear-active particles is obtained within lOm from the axis. This distribution is tentatively explained by a phenomenological model assuming the Maxwell-Boltzmann distribution for the transverse momentum of N-particles. Total number of N-particles of energy E_N≧10^<11> ev, N_N, in an extensive air shower is expressed as a function of size N_N by N_N=(50±5)(Ne/10^5)^<1.1±0.1>, for Ne ranging from 10^3 to more than 10^6. Then the total energy carried by all N-particles of E_N ≧ 10^<11> ev is estimated to be as much as that of the electron component in an EAS.

• 社団法人日本物理学会の論文
• 1961-05-05

著者

• TANAKA Y.

  Institute for Nuclear Study, University of Tokyo

• Tanaka Yasuo

  Institute For Nuclear Study University Of Tokyo

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