Experimental Investigation of the Decay Rate of Orthopositronium

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Zhang Tianbao, Yang Guangming, Guo Baonian and Wang Haidong. Experimental Investigation of the Decay Rate of Orthopositronium[J]. Chinese Physics C, 1992, 16(S2): 135-140.
Zhang Tianbao, Yang Guangming, Guo Baonian and Wang Haidong. Experimental Investigation of the Decay Rate of Orthopositronium[J]. Chinese Physics C, 1992, 16(S2): 135-140. shu
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Received: 1991-09-05
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    Supported by the National Natural Science Foundation of China.

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Experimental Investigation of the Decay Rate of Orthopositronium

  • Institute of High Energy Physics, the Chinese Academy of Sciences. Beijing, China
Fund Project:  Supported by the National Natural Science Foundation of China.

Abstract: A method for the measurement of the vacuum decay rate λ0 of orthopositronium is presented and the preliminary result is λ0=7.034 ±0.013 μs-1. The possibility of improving the experiment is discussed.

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