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4 papers · 2 filters
Complex bumblebee model
Willian Carvalho, A. C. Lehum, J. R. Nascimento +1
We formulate a renormalizable complex extension of the bumblebee theory in which the bumblebee field is promoted to a complex one and coupled to an Abelian gauge sector. Besides th…
Half-BPS Impurity Backgrounds and Supersymmetry
D. Bazeia, A. C. Lehum
We develop a rigid superspace framework for spatially inhomogeneous impurity deformations in dimensions by embedding the impurity profile into a real b…
Scattering amplitudes in dimensionless quadratic gravity coupled to QED
I. F. Cunha, A. C. Lehum
We study ultra-Planckian scattering in an Abelian gauge theory coupled to agravity, the scale-free and renormalizable realization of quadratic quantum gravity. Focusing on…
Lorentz violating quadratic gravity
R. B. Alfaia, Willian Carvalho, A. C. Lehum +3
In this paper, we explore the perturbative renormalization and study the classical dynamics of the bumblebee model coupled to quadratic gravity, a theoretical setting that allows t…