Quantum Physics

    

Precise Values of the Lifetime of Positronium in Vacuum

Authors: Gang Chen, Tianman Chen, Tianyi Chen

In this paper, we calculate the lifetime of ortho-positronium (o-Ps) in vacuum with Euler formula for Basil problem and our previous formulas of the fine-structure constant and the atomic unit of time (tau). Our calculated value of the lifetime of ortho-positronium in vacuum is 142.041358500909 ns in comparison to the most accurate measured value which was 142.043(14) ns and the latest QED calculated value which was 142.04606(20) ns. In addition, with the similar method we also calculate out the lifetime of para-positronium (p-Ps) in vacuum which is 0.1251627502491 ns compared to the QED calculated values 0.125162617(3) ns and 0.125162432(3) ns.

Comments: 9 Pages. 2 Figures.

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Submission history

[v1] 2025-06-02 19:36:53
[v2] 2025-06-06 20:19:58

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