Consistent perturbative light front formulation of quantum electrodynamics
Apr, 199829 pages
Published in:
- Phys.Rev.D 58 (1998) 105011
e-Print:
- hep-th/9806163 [hep-th]
Report number:
- DFUB-97-17
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Abstract:
A new light-front formulation of Q.E.D. is developed, within the framework of standard perturbation theory, in which plays the role of the evolution parameter and the gauge choice is (light-front "temporal" gauge). It is shown that this formulation leads to the Mandelstam-Leibbrandt causal prescription for the non-covariant singularities in the photon propagator. Furthermore, it is proved that the dimensionally regularized one loop off-shell amplitudes exactly coincide with the correct ones, as computed within the standard approach using ordinary space-time coordinates.- quantum electrodynamics
- quantization: light front
- Hamiltonian formalism
- fermion
- photon: propagator
- perturbation theory
- regularization: dimensional
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