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On sixth-order radiative corrections to the muong-factor

О радиационных поправках шестого порядка кg-фактору мюона

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Il Nuovo Cimento A (1965-1970)

Summary

The contribution to the anomalous magnetic moment of the muon from the Feynman diagrams shown in Fig. 1 is found to be

$$\left( {\frac{\alpha }{\pi }} \right)^3 \left\{ {\left( {\frac{{119}}{{27}} - \frac{4}{9}\pi ^2 } \right)\log \left( {\frac{{m_\mu }}{{m_e }}} \right) - \frac{{61}}{{162}} + \frac{1}{{27}}\pi ^2 + 0\left[ {\left( {\frac{{m_e }}{{m_\mu }}} \right)^2 } \right]} \right\}.$$

Riassunto

Si trova che il contributo al momento magnetico anomalo del muone dai diagrammi di Feynman rappresentati in Fig. 1 è

$$\left( {\frac{\alpha }{\pi }} \right)^3 \left\{ {\left( {\frac{{119}}{{27}} - \frac{4}{9}\pi ^2 } \right)\log \left( {\frac{{m_\mu }}{{m_e }}} \right) - \frac{{61}}{{162}} + \frac{1}{{27}}\pi ^2 + 0\left[ {\left( {\frac{{m_e }}{{m_\mu }}} \right)^2 } \right]} \right\}.$$

Резюме

Получено, что вклад в аномальный магнитный момент мюона от фейнмановских диаграмм, изображенных на рис. 1, составляет:

$$\left( {\frac{\alpha }{\pi }} \right)^3 \left\{ {\left( {\frac{{119}}{{27}} - \frac{4}{9}\pi ^2 } \right)\log \left( {\frac{{m_\mu }}{{m_e }}} \right) - \frac{{61}}{{162}} + \frac{1}{{27}}\pi ^2 + 0\left[ {\left( {\frac{{m_e }}{{m_\mu }}} \right)^2 } \right]} \right\}.$$

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Footenotes

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  2. For a review of the fourth-order contributions to the anomalous magnetic moments of the electron and of the muon, see:A. Petermann:Fortschr. Phys.,6, 505 (1958).

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  3. T. Kinoshita:Nuovo Cimento,51 B, 140 (1967).

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  4. T. Kinoshita:The anomalous magnetic moment of the muon, inLectures Given at the Summer School of Theoretical Physics, Cargèse, 1967, edited byM. Lévy (New York, 1968).

  5. The constant terms of the fourth-order electron-positron vacuum polarization corrections to the second-order contribution to 1/2(g μ−2) have been calculated byLautrup andDe Rafael:B. E. Lautrup andE. de Rafael:Phys. Rev.,174, 1835 (1968).

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Traduzione a cura della Redazione.

Переведено рвдакцией.

Address from 1 September 1969: CERN, Theory Division, Geneva.

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Lautrup, B.E., de Rafael, E. On sixth-order radiative corrections to the muong-factor. Nuovo Cimento A (1965-1970) 64, 322–324 (1969). https://doi.org/10.1007/BF02754894

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