32 citations · 66 across the 10 of their papers we have counts for
10 papers
Gravitational Waves from Dimension-6 Assisted Peccei - Quinn Phase Transitions
Nico Benincasa, Kristjan Müürsepp
We consider a simple model-independent extension of the minimal KSVZ axion model, augmenting the Peccei - Quinn effective potential with a dimension-6 operator invariant under the…
Conformal versus non-conformal two-Higgs-doublet model: phase transitions and gravitational waves
Nico Benincasa, Ji-Wei Li, Hanxiao Pu +4
In this work we investigate the CP-conserving two-Higgs-doublet model (2HDM) in two realizations: a classically conformal setup (C2HDM) and a non-conformal setup with explicit tree…
Probing the Electroweak Phase Transition in the Dark Sector
Maimoona Razzaq, Nico Benincasa, Luigi Delle Rose +1
We study an extension of the Standard Model with a dark SU(2) gauge group, where a dark scalar doublet interacts with the Standard Model Higgs through a portal coupling, inducing m…
Systematic derivation of perturbative unitarity bounds for any models
Nico Benincasa
In this letter, we provide a simple algorithm, anyPUB, to systematically derive the scattering matrix in the high-energy limit for any kind of models, irrespectiv…
Phase transitions and gravitational waves in a non-abelian vector dark matter scenario
Nico Benincasa, Luigi Delle Rose, Luca Panizzi +2
We study a scenario where the Standard Model is extended by a SU(2) gauge group in the dark sector. The three associated dark gauge bosons are stabilised via a custodial symmetry t…
Electroweak phase transition in a vector dark matter scenario
Nico Benincasa, Luigi Delle Rose, Luca Panizzi +2
This study explores the parameter space of a minimal extension of the Standard Model with a non-abelian group, in which the gauge bosons are stable and acquire mass through…
Phase Transitions and Gravitational Waves in a Model of Scalar Dark Matter
Nico Benincasa, Andrzej Hryczuk, Kristjan Kannike +1
Theories with more than one scalar field often exhibit phase transitions producing potentially detectable gravitational wave (GW) signal. In this work we study the semi-annihilatin…
The 2HD+a model: collider, dark matter and gravitational wave signals
Giorgio Arcadi, Nico Benincasa, Abdelhak Djouadi +1
We perform a comprehensive study of a model in which the Higgs sector is extended to contain two Higgs doublet fields, with the four types of possibilities to couple to standard fe…
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…
Pseudo-Goldstone dark matter: gravitational waves and direct-detection blind spots
Tommi Alanne, Nico Benincasa, Matti Heikinheimo +4
Pseudo-Goldstone dark matter is a thermal relic with momentum-suppressed direct-detection cross section. We study the most general model of pseudo-Goldstone dark matter arising fro…