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hep-ph1999
Analytic Form of the One-loop Vertex and of the Two-loop Fermion Propagator in 3-Dimensional Massless QED
A. Bashir, A. Kizilersu, M. R. Pennington
We evaluate the analytic expression for the one-loop fermion-boson vertex in massless QED3 in an arbitrary covariant gauge. The result is written in terms of elementary functions o…
hep-ph1999
Riddle of the scalars: where is the sigma?
M. R. Pennington
The riddle of the sigma is recast in a way that tries to differentiate fact from fiction as a basis for future/further discussion. By doing this, it is hoped that the role of the s…