282 citations · 2.7k across the 71 of their papers we have counts for
9 papers · 1 filter
Phase transition and vacuum stability in the classically conformal B-L model
Carlo Marzo, Luca Marzola, Ville Vaskonen
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 wav…
A minimal model of inflation and dark radiation
Kristjan Kannike, Aleksei Kubarski, Luca Marzola +1
We show that a minimal extension of the Standard Model including a new complex scalar field can explain inflation and the observed effective number of neutrinos. The real part of t…
Reconstruction of the mass of Higgs boson pairs in events with Higgs boson pairs decaying into four leptons
Karl Ehatäht, Luca Marzola, Christian Veelken
Various theories beyond the Standard Model predict the existence of heavy resonances decaying to Higgs (H) boson pairs. In order to maximize the sensitivity of searches for such re…
Spacetime and dark matter from spontaneous breaking of Lorentz symmetry
Tom Złośnik, Federico Urban, Luca Marzola +1
It is shown that a spontaneously-broken gauge theory of the Lorentz group contains Ashtekar's chiral formulation of General Relativity accompanied by dust. From this perspective, g…
Constraints on ALPs and excited dark matter from the EDGES 21-cm absorption signal
Andi Hektor, Gert Hütsi, Luca Marzola +1
The recent observation of the 21-cm absorption signal by the EDGES experiment provides a new observational window into the dynamics of the young Universe. Based on this result, we…
Towards a viable scalar interpretation of
Sean Fraser, Carlo Marzo, Luca Marzola +2
Recent measurements of semileptonic B-meson decays seemingly imply violations of lepton flavor universality beyond the Standard Model predictions. With three-level explanations bas…
Dark Matter Effects On Neutron Star Properties
John Ellis, Gert Hütsi, Kristjan Kannike +3
We study possible effects of a dark matter (DM) core on the maximum mass of a neutron star (NS), on the mass-radius relation and on the NS tidal deformability parameter . We sho…
The EDGES 21 cm Anomaly and Properties of Dark Matter
Sean Fraser, Andi Hektor, Gert Hütsi +8
The recently claimed anomaly in the measurement of the 21 cm hydrogen absorption signal by EDGES at , if cosmological, requires the existence of new physics. The possible…
Constraining Primordial Black Holes with the EDGES 21-cm Absorption Signal
Andi Hektor, Gert Hütsi, Luca Marzola +3
The EDGES experiment has recently measured an anomalous global 21-cm spectrum due to hydrogen absorptions at redshifts of about . Model independently, the unusually low t…