32 citations · 204 across the 23 of their papers we have counts for
13 papers · 1 filter
in Dimensional Regularization: a Novel Approach
Ruggero Ferrari
A new Dimensional Regularization of is proposed. Cyclicity and Lorentz covariance are enforced. The extension to generic dimension is based on the integral representation of…
On effective Chern-Simons Term induced by a Local CPT-Violating Coupling using in Dimensional Regularization
Ruggero Ferrari, Mario Raciti
We resume a long-standing, yet not forgotten, debate on whether a Chern-Simons birefringence can be generated by a local term in the Lagrangian (where are c…
Managing in Dimensional Regularization II: the Trace with more
Ruggero Ferrari
In the present paper we evaluate the anomaly for the abelian axial current in a non abelian chiral gauge theory, by using dimensional regularization. This amount to formulate a pro…
Managing gamma_5 in Dimensional Regularization and ABJ Anomaly
Ruggero Ferrari
An integral representation is proposed for the trace involving gamma_5 in dimensional regularization. Lorentz covariance is preserved. ABJ anomaly naturally follows. The Local Func…
A Symmetric Approach to the Massive Nonlinear Sigma Model
Ruggero Ferrari
In the present paper we extend to the massive case the procedure of divergences subtraction, previously introduced for the massless nonlinear sigma model (D=4). Perturbative expans…
On the Renormalization of the Complex Scalar Free Field Theory
Ruggero Ferrari
Polar coordinates are used for the complex scalar free field in D=4 dimensions. The resulting non renormalizable theory is healed by using a recently proposed symmetric subtraction…