21 citations · 44 across the 10 of their papers we have counts for
11 papers
Quantum gravity and spectral running cutoff
Carlo Branchina, Vincenzo Branchina, Filippo Contino +2
We have recently shown that a natural way to implement the Wilsonian paradigm in gauge theories is through the introduction of a ``spectral cutoff", a cut on the eigenvalues of the…
Gravity and the Higgs boson mass
Carlo Branchina, Vincenzo Branchina, Filippo Contino +2
According to usual calculations, both in flat and curved spacetime, the mass of a scalar particle is quadratically sensitive to the ultimate scale of the theory, the UV physi…
Diffeomorphism invariance of the effective gravitational action
Carlo Branchina, Vincenzo Branchina, Filippo Contino +2
We investigate on the diffeomorphism invariance of the effective gravitational action, focusing in particular on the path integral measure. In the literature, two different measure…
On the RG flow of the Newton and cosmological constant
Carlo Branchina, Vincenzo Branchina, Filippo Contino +2
In this note we comment on the RG flow of the Newton and cosmological constants, also in view of some recent claims [1] that would rise some doubts on the validity of our recent wo…
Path integral measure and RG equations for gravity
C. Branchina, V. Branchina, F. Contino +1
Considering the Einstein-Hilbert truncation for the running action in (euclidean) quantum gravity, we derive the renormalization group equations for the cosmological and Newton con…
Path integral measure and cosmological constant
C. Branchina, V. Branchina, F. Contino +1
Considering (euclidean) quantum gravity in the Einstein-Hilbert truncation, we calculate the one-loop effective action using a spherical background. Usually, th…
Standard Model anomalies and vacuum stability for lepton portals with extra symmetry
Carlo Branchina, Hyun Min Lee, Kimiko Yamashita
Recently, the experimental values of the muon and of the boson mass have both indicated significant deviations from the SM predictions, motivating the explor…
Dark Dimension and the Effective Field Theory limit
Carlo Branchina, Vincenzo Branchina, Filippo Contino +1
In [1] we pointed out that in the Dark Dimension scenario [2] theoretical issues arise when the prediction for the vacuum energy , that is obtained from swampland conjectures in…
Does the Cosmological Constant really indicate the existence of a Dark Dimension?
Carlo Branchina, Vincenzo Branchina, Filippo Contino +1
According to the "dark dimension" (DD) scenario, we might live in a universe with a single compact extra dimension, whose mesoscopic size is dictated by the measured value of the c…
Naturalness and UV sensitivity in Kaluza-Klein theories
Carlo Branchina, Vincenzo Branchina, Filippo Contino
More than twenty years ago a paradigm emerged according to which a UV-insensitive Higgs mass and (more generally) a UV-insensitive Higgs effective potential are o…
Dimensional regularization, Wilsonian RG, and the Naturalness/Hierarchy problem
Carlo Branchina, Vincenzo Branchina, Filippo Contino +1
While it is usually stated that dimensional regularization (DR) has no direct physical interpretation, consensus has recently grown on the idea that it might be endowed with specia…