The Dispersive Approach to Electroweak Processes in the Background Magnetic Field

Details The Dispersive Approach to Electroweak Processes in the Background Magnetic Field The Dispersive Approach to Electroweak Processes in the Background Magnetic Field

2000-11-07

arxiv.org/abs/hep-ph/0011090v1

Int.J.Mod.Phys. A16S1C (2001) 1238-1240

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, talk presented in DPF2000, Aug. 9-12, Ohio State U

Scientific paper

10.1142/S0217751X01009417

We propose a new method to compute amplitudes of electroweak processes in the strong background magnetic field, using $\gamma\to e^+e^-$ as an example. We show that the {\it moments} of $\gamma\to e^+e^-$ 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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