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Verification of the Four-Loop Corrections to QED: Calculation of the Fifth-Order Vacuum Polarization Coefficients

R. Acharya
B. Nigam
Journal / Anthology

Journal of Physics G
Year: 1992
Volume: 18
Page range: L137-L139

Gorishny et al. have recently calculated the four-loop corrections to the QED Callan-Symanzik Beta-function and the Gell-Mann-Low function psi. We have verified their result by explicitly checking that psi satisfies the Gell-Man-Low equation and in doing so have calculated the fifth-order vacuum polarization coefficient b5.

*Science > Physics > Quantum Physics

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