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Decay of tripositronium to an electron and two photons

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Abstract

The bound state of a positron and two electrons, called tripositronium, is investigated in this article. The differential probability is calculated for the decay of the ground state of tripositronium to an electron and two photons. It is established that such a decay primarily occurs with the formation of a nonrelativistic electron. It is shown that the integral decay probability is equal to 0.15 · 109 sec−1. This corresponds to a lifetime for tripositronium of 0.65 · 10−8 sec.

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Literature cited

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    J. A. Wheeler, Ann. New York Acad. Sci.,48, 219 (1946).

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    E. A. Hylleraas, Phys. Rev.,71, 491 (1947).

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Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedeoii, Fizika, No. 4, pp. 69–73, April, 1978.

The author thanks V. S. Vanyashin for formulating the problem and for useful discussions.

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Tisenko, Y.A. Decay of tripositronium to an electron and two photons. Soviet Physics Journal 21, 466–469 (1978). https://doi.org/10.1007/BF00895546

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Keywords

  • Decay Probability
  • Differential Probability
  • Nonrelativistic Electron
  • Integral Decay