Direct Observaion of Delocalized Positronium in KCI

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概要

• 論文の詳細を見る

• The angular correlation of two 7-rays from positrons annihilating in KCIhas been measured at 4.2 K. Obtained data clearly show 31 narrow componentwhich was not evident in a previous measurement at liqttid N. temperature.This narrow component is a direct evidence for delocalized positronium formationin KCI. Comparison of the data with the theoretical angular correlation curvecalculated by Nieminen and with the results of magnetic quenching experimentsindicates that more localized positronium-like states also exist.

• 社団法人日本物理学会の論文
• 1978-09-15

著者

• HYODO Toshio

  Institute of Physics,College of Arts and Sciences,University of Tokyo

• Hyodo Toshio

  Institute Of Physics College Of Arts And Sciences University Of Tokyo

• Hyodo Toshio

  Institute Of Physics College Of General Education University Of Tokyo

• TAKAKUSA Yasuo

  Institute of Physics,College of General Education,University of Tokyo

• Takakusa Yasuo

  Institute Of Physics College Of General Education University Of Tokyo

関連論文

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• Positronium in Alkali Halides
• Temperature Dependence of Positronium Momentum Distribution in KCl
• Stable, High-Efficiency Moderator with Tungsten Mesh
• On the Anomalous Broadening of the Positronium Peak in NaF: Possibility of Metastable Self-Trapped Positronium State
• An Examination of the Angular Correlation of Annihilation Radiation in Silicon Single Crystal
• A New Long-Lived Component in the Positron Lifetime Spectrum in KI at Low Temperatures
• Study of Umklapp Annihilation of Positrons in Copper by Means of Rotating-Specimen Method
• Positron Polarons and Positron Trapping by Defects in LiF
• Effect of the Diffraction of Annihilation γ-Rays on Their Angular Correlation in a Single Crystal Specimen
• Study of the Positronium Peak in the Angular Correlation Curve of NaF Crystal
• Direct Observaion of Delocalized Positronium in KCI
• Positron Annihilation in [fe(ptz)_6](BF_4)_2 and [Zn(ptz)_6](BF_4)_2 Single Crystals Studied with One-Dimensional Angular Correlation of Annihilation Radiation
• On the Existence of Delocalized Positronium in NaF at Room Temperature
• A Liquid Helium Cryostat for Positron Annihilation 2_γ Angular Correlation Measurements
• Evidence for Positronium-Like States in NaF and NaCl
• Comments on the Diffraction Effect in Positron Annihilation
• A Lattice Effect on the Enhancement of the Partial Annihilation Rate Inferred from a Numerical Computation on a Nonspherical Fermi Surface
• Enhancement of Annihilation Rate of Electron-Positron Pairs in Periodic Fields

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