6 papers
The effects of non Bunch-Davies initial conditions on gravitationally produced relics
Enrico Bertuzzo, Gabriel M. Salla, Andrea Tesi
Typical gravitational production of relics from amplification of inflationary perturbations assumes Bunch-Davies initial conditions, i.e. a vacuum with initially no particles. In t…
Decaying spin-3/2 dark matter from baryon number violation
Francesco Costa, Gabriel M. Salla
We explore an uncharted corner of dark matter phenomenology: non-supersymmetric spin- dark matter with baryon number violating interactions. In an effective field theory descr…
Could a Primordial Black Hole Explosion Explain the extremely high-energy KM3NeT neutrino Event?
Lua F. T. Airoldi, Gustavo F. S. Alves, Yuber F. Perez-Gonzalez +2
A black hole is expected to end its lifetime in a cataclysmic runaway burst of Hawking radiation, emitting all Standard Model particles with ultra-high energies. Thus, the explosio…
Chasing Serendipity: Tackling Transient Sources with Neutrino Telescopes
Lua F. T. Airoldi, Gustavo F. S. Alves, Yuber F. Perez-Gonzalez +2
The discovery of ultra-high-energy neutrinos by IceCube marked the beginning of neutrino astronomy. Yet, the origin and production mechanisms of these neutrinos remain an open ques…
Spontaneous breaking of baryon number, baryogenesis and the bajoron
Pedro Bittar, Gustavo Burdman, Gabriel M. Salla
We explore the spontaneous breaking of global baryon number for baryogenesis. We introduce a model with three majorana fermions and a complex scalar carrying baryon number charge.…
Gravitationally produced Dark Matter and primordial black holes
Enrico Bertuzzo, Yuber F. Perez-Gonzalez, Gabriel M. Salla +1
We examine how the existence of a population of primordial black holes (PBHs) influences cosmological gravitational particle production (CGPP) for spin-0 and spin-1 particles. In a…