An Analysis of the Charged Particles emitted following Negative Muon Absorptions in Photographic Emulsions

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概要

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• Calculations have been performed for the energy distribution of alpha particles and protons following the negative muon absorption in photographic emulsions. Three shapes, (I) Chew-Goldberger distribution, (II) Fermi gas at kT=0 and (III) Fermi gas at kT=9 MeV, are assumed for the proton momentum distributions in the nucleus and the muon absorption probability is calculated for the single particle process. Assuming that the total kinetic energy of produced neutron is imparted into the compound nucleus, we apply the statistical theory to emission processes. With the assumption of (III) for Ag and Br, the energy distributions of emitted alpha particles have been well explained by the calculations using the statistical theory, but the rate of proton emission has come out to be too small. If it is assumed that most of produced neutrons were directly emitted, (I) may explain the energy spectrum of emitted particles. In (II), the emission rate is too small. As for the absorption probability, all three shapes show reasonable agreement with experiment.

• 理論物理学刊行会の論文
• 1959-05-25

著者

• Ishii Chikai

  Department Of Physic Tohoku College Of Pharmacy

• Ishii Chikai

  Department Of Physics Tohoku University

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