3 papers
hep-ph2025
Vector-field spontaneous baryogenesis with Lorentz invariance violation
Mattia Dubbini, Orlando Luongo, Aniello Quaranta
We extend spontaneous baryogenesis by considering the spontaneous breaking of through a complex vector field. This field interacts with baryons and leptons via a vector-cu…
gr-qc2025
Bondi accretion disk luminosity around neutral and charged Simpson-Visser spacetimes
Serena Gambino, Roberto Giambò, Orlando Luongo
We investigate relativistic Bondi accretion in the Simpson-Visser spacetime, which, via a single parameter , interpolates between the Schwarzschild, regular black hole, extre…
gr-qc2025
Impact of flavor condensate dark matter on accretion disk luminosity in spherical spacetimes
Antonio Capolupo, Orlando Luongo, Aniello Quaranta
We investigate the impact of dark matter condensates on the emission and thermodynamic properties of accretion disks, in a spherically-symmetric and static background. We focus on…