We analyze one-loop vacuum stability, perturbativity, and phenomenological constraints on
a complex singlet extension of the standard model scalar sector containing a scalar dark …

The existence of dark matter was suggested, using simple gravitational arguments, seventy
years ago. Although we are now convinced that most of the mass in the Universe is indeed …

We investigate the possibility that dark matter could be made of scalar candidates and focus,
in particular, on the unusual mass range between a few MeVs and a few GeVs. After …

We consider the possibility that along the thermal history of the Universe, dark matter (DM)
would have been created from Standard Model particles, either through a kinetic mixing …

We show that a gauge singlet scalar S, with a coupling to the Higgs doublet of the form λ
SS† SH† H and with the S mass entirely generated by the Higgs expectation value, has a …

Under a hypothesis of classically conformal theories, we investigate the minimal B–L
extended Standard Model, which naturally provides the seesaw mechanism for explaining …

The Higgs sector of the Standard Model offers a unique probe of the hidden sector. In this
work, we explore the possibility of renormalizable Higgs couplings to the hidden sector …

We show that, by adding a gauge singlet scalar S to the standard model which is
nonminimally coupled to gravity, S can act both as the inflaton and as thermal relic dark …

We analyze the one-loop vacuum stability and perturbativity bounds on a singlet extension
of the Standard Model (SM) scalar sector containing a scalar dark matter candidate. We …

XENON100 and the LHC are two of the most promising machines to test the physics beyond
the standard model. In the meantime, indirect hints push us to believe that the dark matter …