Infrared singularities in QED3 can be avoided by including at least one massless source which couples to the photon. Once that is arranged it is possible to obtain nonzeromass solutions for the source Green functions in scalar and (doubled) spinor electrodynamics, by using the gauge technique. We find that the asymptotic results for the source spectral ρ functions are typically ρ(p)≃(p2−m2)−1−e2/cπ2 as p→m, and ρ(p)≃p−2exp(c′e2/πp) as p→∞. The constants c and c′ are respectively related to the number of charged massless particles and their "spin" character.

Item Type:	Refereed Article
Research Division:	Physical Sciences
Research Group:	Particle and high energy physics
Research Field:	Particle physics
Objective Division:	Expanding Knowledge
Objective Group:	Expanding knowledge
Objective Field:	Expanding knowledge in the physical sciences
UTAS Author:	Delbourgo, R (Professor Robert Delbourgo)
ID Code:	90693
Year Published:	1992
Web of Science® Times Cited:	9
Deposited By:	Mathematics and Physics
Deposited On:	2014-04-16
Last Modified:	2014-04-16
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