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.

UR - http://www.scopus.com/inward/record.url?scp=49649134751&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=49649134751&partnerID=8YFLogxK

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 -