12 citations · 34 across the 21 of their papers we have counts for
5 papers · 1 filter
Probing cosmological phase transitions with SKAO through nano-Hz gravitational-wave portal
Roman Pasechnik, António P. Morais
The recent evidence for a stochastic gravitational wave (GW) background at nano-Hz frequencies from pulsar timing arrays (PTAs) provides a strong science case for exploring cosmolo…
Cosmological Signatures of the Conformal and Non-Conformal Next-to-Minimal Two-Higgs-Doublet Model
Filip Gustavsson, Roman Pasechnik, Johan Rathsman
We investigate cosmological signatures of the next-to-minimal two-Higgs-doublet model (N2HDM) in both the classically scale-invariant, or conformal, realization and in the correspo…
Minimal Scale-Invariant Dark Matter
Alexander Belyaev, Roman Pasechnik, Rishav Roshan +1
We study the minimal classically scale-invariant extension of the Standard Model, containing a single -stabilised real scalar singlet whose mass is not an independent…
Machine Learning for Multi-messenger Probes of New Physics and Cosmology: A Review and Perspective
Andrea Addazi, Konstantin Belotsky, Vitaly Beylin +18
The multi-messenger exploration of dark matter and physics beyond the Standard Model has emerged as a central direction in modern astro-particle physics, particularly following the…
Sterile neutrino dark matter in conformal Majoron models
João Gonçalves, Danny Marfatia, António P. Morais +2
We study sterile neutrino dark matter (DM) in a classically conformal U(1)' extension of the Standard Model with three right-handed neutrinos and a Majoron-like singlet scalar that…