282 citations · 2.7k across the 71 of their papers we have counts for
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An EFT approach to the study of multi-phase criticality scenarios
Kristjan Kannike, Luca Marzola, Kristjan Müürsepp
Multi-phase critical scenarios explain the observed Higgs boson mass scale by the almost simultaneous occurrence of two smoothly connected phases of the theory, which differ by the…
Generalized uncertainty principle and neutrino phenomenology
Ioannis D. Gialamas, Timo J. Kärkkäinen, Luca Marzola
Generalized uncertainty principles are effective changes to the Heisenberg uncertainty principle that emerge in several quantum gravity models. In the present letter, we study the…
Pseudo-Goldstone dark matter in a radiative inverse seesaw scenario
Kristjan Kannike, Aleksei Kubarski, Luca Marzola +1
We consider a scale-invariant inverse seesaw model with dynamical breaking of gauge symmetry and lepton number. In some regions of the parameter space, the Majoron - the pseudo-Gol…
Testing Bell inequalities and entanglement with di-boson final states
Luca Marzola
We explore the phenomenology of quantum entanglement at collider experiments by computing the polarization density matrix of processes yielding two massive gauge bosons. After revi…
Bell inequality is violated in decays
M. Fabbrichesi, R. Floreanini, E. Gabrielli +1
The violation of the Bell inequality is one of the hallmarks of quantum mechanics and can be used to rule out local deterministic alternative descriptions. We utilize the data anal…
Stringent bounds on and anomalous couplings with quantum tomography at the LHC
M. Fabbrichesi, R. Floreanini, E. Gabrielli +1
Quantum tomography provides the full reconstruction of the density matrix of a state. We use it to study the Higgs boson decay into weak gauge bosons. Anomalous couplings beyond th…
Multi-step phase transitions and gravitational waves in the inert doublet model
Nico Benincasa, Luigi Delle Rose, Kristjan Kannike +1
The inert doublet model is a well-motivated extension of the Standard Model that contains a dark matter candidate and modifies the dynamics of the electroweak symmetry breaking. In…
Dark Matter-Induced Multi-Phase Dynamical Symmetry Breaking
Kristjan Kannike, Niko Koivunen, Aleksei Kubarski +4
We consider the classically scale invariant Higgs-dilaton model of dynamical symmetry breaking extended with an extra scalar field that plays the role of dark matter. The Higgs bos…
Multi-phase critical Higgs boson at colliders
Katri Huitu, Kristjan Kannike, Niko Koivunen +3
The recently proposed multi-phase criticality principle in Coleman-Weinberg models can provide a new explanation for the hierarchy between the electroweak and new physics scales. W…
Vacuum stability with radiative Yukawa couplings
Emidio Gabrielli, Luca Marzola, Kristjan Müürsepp +1
We explore the electroweak vacuum stability in the framework of a recently proposed paradigm for the origin of Yukawa couplings. These arise as low energy effective couplings radia…
A fake doublet solution to the muon anomalous magnetic moment
Damiano Anselmi, Kristjan Kannike, Carlo Marzo +5
Extensions to the Standard Model that use strictly off-shell degrees of freedom - the fakeons - allow for new measurable interactions at energy scales usually precluded by the cons…
Phenomenology of a Fake Inert Doublet Model
Damiano Anselmi, Kristjan Kannike, Carlo Marzo +5
We introduce a new way of modeling the physics beyond the Standard Model by considering fake, strictly off-shell degrees of freedom: the fakeons. To demonstrate the approach and ex…
Light Higgs boson from multi-phase criticality in dynamical symmetry breaking
Kristjan Kannike, Luca Marzola, Martti Raidal +1
The Coleman-Weinberg mechanism can realise different phases of dynamical symmetry breaking. In each phase a combination of scalars, corresponding to the pseudo-Goldstone boson of s…
Higgs-like spectator field as the origin of structure
Alexandros Karam, Tommi Markkanen, Luca Marzola +3
We show that the observed primordial perturbations can be entirely sourced by a light spectator scalar field with a quartic potential, akin to the Higgs boson, provided that the fi…
Minima of Classically Scale-Invariant Potentials
Kristjan Kannike, Kaius Loos, Luca Marzola
We propose a new formalism to analyse the extremum structure of scale-invariant effective potentials. The problem is stated in a compact matrix form, used to derive general express…
Novel mechanism for CMB modulation in the Standard Model
Alexandros Karam, Tommi Markkanen, Luca Marzola +3
We demonstrate that light spectator fields can source sizeable CMB anisotropies through modulated reheating even in the absence of direct couplings to the inflaton. The effect aris…
Impact of loop-induced processes on the boosted dark matter interpretation of the XENON1T excess
Luigi Delle Rose, Gert Hütsi, Carlo Marzo +1
We consider the boosted dark matter solution of the XENON1T excess to constrain the framework through loop-generated processes. The interaction of the boosted dark matter component…
Simplified leptoquark models for precision experiments: two-loop structure of corrections
Luigi Delle Rose, Carlo Marzo, Luca Marzola
We put forward the framework of simplified leptoquark models: simple extensions of the Standard Model that serve as benchmarks to test the interactions of leptons with new colored…
Dark origin of quark flavor hierarchy and mixing
Emidio Gabrielli, Carlo Marzo, Luca Marzola +1
We provide a dynamical mechanism for the generation of the Cabibbo-Kobayashi-Maskawa matrix in the context of a recently proposed model of flavor. The framework, based on the parad…
Left-Right Supersymmetry as the Origin of Flavor Physics
Sean Fraser, Emidio Gabrielli, Carlo Marzo +2
We propose a new framework for the observed flavor hierarchy and mixing based on left-right supersymmetry. The model contains the most minimal Higgs sector consisting only of gauge…
Geometry of Flat Directions in Scale-Invariant Potentials
Kristjan Kannike, Aleksei Kubarski, Luca Marzola
We observe that biquadratic potentials admit non-trivial flat directions when the determinant of the quartic coupling matrix of the scalar fields vanishes. This consideration sugge…
Common explanation to the , and anomalies in a 3HDM+ and connections to neutrino physics
Carlo Marzo, Luca Marzola, Martti Raidal
Scalar theories can account for the current measurements through a vector operator induced at the loop level. Once the vector cont…
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…