4 papers
From Dark Sectors to the Axion-Neutrino Connection
H. B. Câmara
The Standard Model (SM) of particle physics provides a successful description of fundamental particles and their interactions but fails to explain phenomena such as neutrino oscill…
Flavored Peccei-Quinn symmetries in the minimal DFSZ model
J. R. Rocha, H. B. Câmara, F. R. Joaquim
We consider a Dine-Fischler-Srednicki-Zhitnitsky (DFSZ) axion model extended with two right-handed neutrino fields to realize the minimal type-I seesaw. In this DFSZ scheme we s…
Unraveling particle dark matter with Physics-Informed Neural Networks
M. P. Bento, H. B. Câmara, J. F. Seabra
We parametrically solve the Boltzmann equations governing freeze-in dark matter (DM) in alternative cosmologies with Physics-Informed Neural Networks (PINNs), a mesh-free method. T…
Axion framework with color-mediated Dirac neutrino masses
A. Batra, H. B. Câmara, F. R. Joaquim +3
We propose a KSVZ-type axion framework in which vector-like quarks (VLQ) and colored scalars generate Dirac neutrino masses radiatively. The global Peccei-Quinn symmetry (under whi…