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Compton scattering vertex for massive scalar QED


Bashir, A and Concha-Sanchez, Y and Delbourgo, R and Tejeda-Yeomans, ME, Compton scattering vertex for massive scalar QED, Physical Review D, 80, (4) pp. 045007-1-045007-15. ISSN 1550-7998 (2009) [Refereed Article]

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Copyright 2009 The American Physical Society

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DOI: doi:10.1103/PhysRevD.80.045007


We investigate the Compton scattering vertex of charged scalars and photons in scalar quantum electrodynamics (SQED). We carry out its nonperturbative construction consistent with Ward-Fradkin-Green-Takahashi identity which relates 3-point vertices to the 4-point ones. There is an undetermined part which is transverse to one or both the external photons, and needs to be evaluated through perturbation theory. We present in detail how the transverse part at the 1-loop order can be evaluated for completely general kinematics of momenta involved in covariant gauges and dimensions. This involves the calculation of genuine 4-point functions with three massive propagators, the most nontrivial integrals reported in this paper. We also discuss possible applications of our results.

Item Details

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:58598
Year Published:2009
Web of Science® Times Cited:6
Deposited By:Physics
Deposited On:2009-10-15
Last Modified:2010-03-25

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