Abstract
In the Born approximation of perturbation theory, two particular cases of the coal-escence of three parallel photons at an electron at rest are considered: 1) when two of the incident quanta are less hard than the third; 2) when one of the incident quanta is less hard than two identical photons.
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Z. Fried, Nuovo Cimento,22, 1303 (1961).
A. I. Smirnov, Izv. Vyssh. Uchebn. Zaved., Fiz., No. 4, 74 (1978).
A. I. Akhiezer and V. B. Berestetskii, Quantum Electrodynamics [in Russian], Fizmatgiz, Moscow (1959).
A. I. Smirnov, Yad. Fiz.,21, 586 (1975).
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 11–14, August, 1979.
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Smirnov, A.I., Likhushin, Y.B. Coalescence of three photons at an electron. I. Soviet Physics Journal 22, 813–815 (1979). https://doi.org/10.1007/BF00889663
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DOI: https://doi.org/10.1007/BF00889663