TY - JOUR
T1 - Quantum electrodynamical cross-section formula from photon mass and dimensional regularization
AU - Papanicolaou, Nicolas
AU - Zwanziger, Daniel
N1 - Funding Information:
in part by the National Science Foundation in part by the National Science Foundation
PY - 1975/12/22
Y1 - 1975/12/22
N2 - 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.
AB - 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.
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U2 - 10.1016/0550-3213(75)90295-3
DO - 10.1016/0550-3213(75)90295-3
M3 - Article
AN - SCOPUS:49649134751
VL - 101
SP - 77
EP - 94
JO - Nuclear Physics B
JF - Nuclear Physics B
SN - 0550-3213
IS - 1
ER -