3 papers
hep-th2026
Conformal anomaly in a vector field model with auxiliary scalar field
Samuel W. P. Oliveira, Públio Rwany B. R. do Vale, Ilya L. Shapiro
The conformal anomaly has well-known ambiguities related to the possible schemes of regularization and renormalization. In case of dimensional regularization, one of the options is…
gr-qc2026
Conditions for positivity of energy in superrenormalizable polynomial gravity
Públio Rwany B. R. do Vale
At the quantum level, the polynomial models of gravity with six and eight derivatives are superrenormalizable, but suffer from higher derivative ghost and/or tachyonic ghost states…
hep-th2024
On the renormalization of massive vector field theory coupled to scalar in curved space-time
Ioseph L. Buchbinder, Públio Rwany B. R. do Vale, Guilherme Y. Oyadomari +1
We consider the renormalization of massive vector field interacting with charged scalar field in curved spacetime. Starting with the theory minimally coupled to external gravity an…