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4 papers · 2 filters
QED with minimal and nonminimal couplings: on the quantum generation of Lorentz violating terms in the pure photon sector
G. Gazzola, H. G. Fargnoli, A. P. Baêta Scarpelli +2
We consider an effective model formed by usual QED (minimal coupling) with the addition of a nonminimal Lorentz violating interaction (proportional to a fixed 4-vector ) which…
Regularization Independent Analysis of the Origin of Two Loop Contributions to N=1 Super Yang-Mills Beta Function
H. G. Fargnoli, B. Hiller, A. P. Baêta Scarpelli +2
We present a both ultraviolet and infrared regularization independent analysis in a symmetry preserving framework for the N=1 Super Yang-Mills beta function to two loop order. We s…
Systematic Implementation of Implicit Regularization for Multi-Loop Feynman Diagrams
A. L. Cherchiglia, Marcos Sampaio, M. C. Nemes
Implicit Regularization (IReg) is a candidate to become an invariant framework in momentum space to perform Feynman diagram calculations to arbitrary loop order. In this work we pr…
Ultraviolet and Infrared Divergences in Implicit Regularization: a Consistent Approach
H. G. Fargnoli, A. P. Baeta Scarpelli, L. C. T. Brito +4
Implicit Regularization is a 4-dimensional regularization initially conceived to treat ultraviolet divergences. It has been successfully tested in several instances in the literatu…