activity
20122025
most citedTwo-loop stability of a complex singlet extended Standard Model

84 citations · 514 across the 45 of their papers we have counts for

collaborators

45 papers

hep-ph2025★ 4 cited

Primordial black holes and magnetic fields in conformal neutrino mass models

Shyam Balaji, João Gonçalves, Danny Marfatia +2

Sufficiently strong and long-lasting first-order phase transitions can produce primordial black holes (PBHs) that contribute substantially to the dark matter abundance of the Unive…

hep-ph2025

Gravitational waves from color restoration in a leptoquark model of radiative neutrino masses

Mårten Bertenstam, Marco Finetti, António P. Morais +2

We study the first-order phase transitions and the emerging stochastic gravitational wave spectrum in a minimal leptoquark extension of the Standard Model that explains active neut…

hep-ph2025★ 6 cited

Supercooled phase transitions in conformal dark sectors explain NANOGrav data

João Gonçalves, Danny Marfatia, António P. Morais +1

According to recent lore, it is difficult to explain the evidence for a stochastic gravitational wave background obtained by pulsar timing arrays with supercooled first-order phase…

hep-ph2024★ 5 cited

Gravitational waves from supercooled phase transitions in conformal Majoron models of neutrino mass

João Gonçalves, Danny Marfatia, António P. Morais +1

We study supercooled first-order phase transitions above the QCD scale in a wide class of conformal Majoron-like U(1)' models that explain the totality of active neutrino oscillati…

hep-ph2024★ 12 cited

Invisible Higgs decay from dark matter freeze-in at stronger coupling

Oleg Lebedev, António P. Morais, Vinícius Oliveira +1

We study the Higgs boson decay into dark matter (DM) in the framework of freeze-in at stronger coupling. Even though the Higgs-DM coupling is significant, up to order one, DM does…

hep-ph2023

Exploring mixed lepton-quark interactions in non-resonant leptoquark production at the LHC

João Gonçalves, António P. Morais, António Onofre +1

Searches for new physics (NP) at particle colliders typically involve multivariate analysis of kinematic distributions of final state particles produced in a decay of a hypothetica…