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The Dispersive Approach to Electroweak Processes in the Background Magnetic Field

Guey-Lin Lin
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Abstract

We propose a new method to compute amplitudes of electroweak processes in the strong background magnetic field, using $γ\to e^+e^-$ as an example. We show that the {\it moments} of $γ\to e^+e^-$ width are proportional to the derivatives of photon polarization function at the zero energy. Hence, the pair-production width can be easily calculated from the latter by the inverse Mellin transform. The prospects of our approach are commented.

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Guey-Lin Lin. 2000-11-07. The Dispersive Approach to Electroweak Processes in the Background Magnetic Field. https://doi.org/10.1142/s0217751x01009417

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