On the Anomalous Broadening of the Positronium Peak in NaF: Possibility of Metastable Self-Trapped Positronium State

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概要

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• Recently observed anomalous temperature dependence of the width of thepositronium peak in NaF is interpreted in terms of metastably self-trappedpositronium. Analysis of the data indicates th;tt there exists metastable self-trapped state of positronium at about 0.1 eV above the ground state of freeposutronuum.

• 社団法人日本物理学会の論文
• 1980-12-15

著者

• HYODO Toshio

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

• Kasai Jun-ichi

  Institute Of Physics College Of Arts And Sciences University Of Tokyo:central Research Laboratory Hi

• Kasai Jun-ichi

  Institute Of Physics College Of General Education University Of Tokyo

• Hyodo Toshio

  Institute Of Physics College Of Arts And Sciences 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

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• 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
• On the Bloch States of Positronium in Alkali Halides
• 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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