Abstract
Exact cross section formulae for quantum electrodynamical processes are derived in terms of an infrared regulating measure, which explicitly segregates the real infrared divergence. It also yields a simple prescription for the removal of the virtual infrared divergence, which we discuss in the context of two different regularization schemes: the traditional photon-mass regularization and the recently developed dimensional regularization. Comparison with the coherent state formulation of quantum electrodynamics establishes the equivalence of the two approaches at the cross-section level.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 77-94 |
| Number of pages | 18 |
| Journal | Nuclear Physics, Section B |
| Volume | 101 |
| Issue number | 1 |
| DOIs | |
| State | Published - Dec 22 1975 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Papanicolaou, N., & Zwanziger, D. (1975). Quantum electrodynamical cross-section formula from photon mass and dimensional regularization. Nuclear Physics, Section B, 101(1), 77-94. https://doi.org/10.1016/0550-3213(75)90295-3