Study of the Positronium Peak in the Angular Correlation Curve of NaF Crystal

• Takakusa Yasuo

  Institute of Physics, College of General Education, University of Tokyo (Komaba)

• Hyodo Toshio

  Institute of Physics, College of General Education, University of Tokyo (Komaba)

書誌事項

タイトル別名

• Study of the Positronium Peak in the An

抄録

Positron annihilation 2γ angular correlation curve of NaF has been measured at temperatures ranging from 4.5 K to 300 K. The temperature dependence of the narrow peaks originating from the self-annihilation of singlet positronium (Ps) is analysed. In the lower temperature region, the peak width increases in a rate that shows the Ps is in free state with the effective mass 1.5±0.2 times heavier than the bare mass. At temperatures higher than 150 K, the peak width increases more rapidly than in the lower temperature region, which indicates that a number of the Ps are trapped in some localized state.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 49 (6), 2243-2247, 1980

  一般社団法人 日本物理学会

キーワード

• General Physics and Astronomy

詳細情報

• CRID: 1390282679161295872
• NII論文ID: 110001965332
• NII論文ID: 210000088956
• NII論文ID: 130003896576
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.49.2243
• BIBCODE: 1980JPSJ...49.2243T
• COI: 1:CAS:528:DyaL3MXjslyltQ%3D%3D
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 2199383
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I2199383
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.49.2243
• 本文言語コード: en
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