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Showing 2015 · hep-thShow all
3 papers · 2 filters
hep-th2015★ 17 cited
Momentum Routing Invariance in Extended QED: Assuring Gauge Invariance Beyond Tree Level
A. R. Vieira, A. L. Cherchiglia, Marcos Sampaio
We address the study of gauge invariance in the Standard Model Extension which encompasses all Lorentz-violating terms originated by spontaneous symmetry breaking at the Planck sca…
hep-th2015★ 12 cited
Subtleties in the beta function calculation of N=1 supersymmetric gauge theories
A. L. Cherchiglia, Marcos Sampaio, B. Hiller +1
We investigate some peculiarities in the calculation of the two-loop beta-function of supersymmetric models which are intimately related to the so-called "Anomaly Puzzle". Th…
hep-th2015★ 10 cited
One-loop conformal anomaly in an implicit momentum space regularization framework
A. R. Vieira, J. C. C. Felipe, G. Gazzola +1
In this paper we consider matter fields in a gravitational background in order to compute the breaking of the conformal current at one-loop order. Standard perturbative calculation…