Adding the terms quadratic in the curvature to the Einstein-Hilbert action renders gravity
renormalizable. This property is preserved in the presence of the most general …

We review (and extend) the analysis of general theories of all interactions (gravity included)
where the mass scales are due to dimensional transmutation. Quantum consistency requires …

First-order phase transitions, which take place when the symmetries are predominantly
broken (and masses are then generated) through radiative corrections, produce observable …

A bstract We present an updated analysis of the first-order phase transition associated with
symmetry breaking in the early Universe in a classically scale-invariant model extended with …

The Starobinsky model, considered in the framework of the Palatini formalism, in contrast to
the metric formulation, does not provide us with a model for inflation, due to the absence of a …

We discuss the inflationary dynamics of a system with a non-minimal coupling between the
Higgs and the Ricci scalar as well as a Ricci scalar squared term. There are two scalar …

We consider a classically scale invariant version of the Standard Model, extended by an
extra dark SU (2) X gauge group. Apart from the dark gauge bosons and a dark scalar …

Within classically conformal models, the spontaneous breaking of scale invariance is usually
associated to a strong first order phase transition that results in a gravitational wave …

Thermal corrections in classically conformal models typically induce a strong first-order
electroweak phase transition, thereby resulting in a stochastic gravitational background that …

The self-interactions of the conformal mode of the graviton are controlled, in dimensionless
gravity theories (agravity), by a coupling\(f_0\) that is not asymptotically free. We show that …