Title: The technique of inverse Mellin transform for processes occurring in a background magnetic field
Authors: Lin, GL
物理研究所
Institute of Physics
Issue Date: 2003
Abstract: We develop the technique of inverse Mellin transform for processes occurring in a background magnetic field. We show by analyticity that the energy (momentum) derivatives of a field theory amplitude at the zero energy (momentum) is equal to the Mellin transform of the absorptive part of the amplitude. By inverting the transform, the absorptive part of the amplitude can be easily calculated. We apply this technique to calculate the photon polarization function in a background magnetic field.
URI: http://hdl.handle.net/11536/18609
ISBN: 0-444-51343-4
Journal: ICHEP 2002, PROCEEDINGS
Begin Page: 834
End Page: 836
Appears in Collections:Conferences Paper