132 citations · 746 across the 39 of their papers we have counts for
42 papers
Hawking emission of massive vector fields by Kerr black holes
Marco Calzà, Miguel Faria, Yuber F. Perez-Gonzalez +1
We compute, for the first time, the Hawking emission spectrum of massive vector (Proca) fields by spinning Kerr black holes, determining the associated greybody factors and the res…
: Hawking Radiation from Regular Black Holes
Alexandre Arbey, Marco Calzà, Léa Malacher +2
We present , a major update of the public code designed to compute Hawking radiation spectra of black holes. Building upon previous versions, this release…
Bose-enhanced Neutrino Decays in a Thermal Medium
Yuber F. Perez-Gonzalez, Manibrata Sen, Walter Tangarife
We compute the decay width of neutrinos in a thermal medium using finite-temperature quantum field theory, focusing on non-standard decays into lighter neutrinos and a scalar or li…
ULYSSES the Third: An Odyssey Towards a Unified Python Toolkit for Leptogenesis
Alessandro Granelli, Juraj Klarić, Dhruv Pasari +2
We present the third release of , a Python package for the numerical evaluation of the baryon asymmetry generated through leptogenesis. This version includes code…
Multi-messenger Constraints on a Primordial Black Hole Origin of the KM3-230213A Event
Yuber F. Perez-Gonzalez
Black holes are expected to end their lifetime in a burst of Hawking radiation, emitting all Standard Model particles at ultra-high energies. The evaporation of a nearby primordial…
Emergent Large Lepton Mixing from Neutrino Refraction in Dark Matter
Susobhan Chattopadhyay, Yuber F. Perez-Gonzalez, Manibrata Sen
We propose a novel origin for the disparity between quark and lepton flavor mixing based on the refractive nature of neutrino masses. We postulate that the fundamental mixing in bo…
Baryogenesis via Asymmetric Evaporation of Primordial Black Holes
Joaquim Iguaz Juan, Yuber F. Perez-Gonzalez, Jessica Turner
We revisit baryogenesis from the asymmetric evaporation of light primordial black holes, focusing on scenarios where gravitational effects induce a matter antimatter asymmetry. In…
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…
Gray-body factors: Method matters
Alexandre Arbey, Marco Calzà, Yuber F. Perez-Gonzalez
The calculation of gray-body factors is essential for understanding Hawking radiation and black hole thermodynamics. While the formalism developed by Chandrasekhar is effective for…
Neutrino Emission and Plasma Heating from Primordial Black Holes: An Improved Approach to Constraints
Héctor Sanchis, Gabriela Barenboim, Yuber F. Perez-Gonzalez
We investigate the impact of neutrino emission via Hawking radiation from primordial black holes (PBHs) on the cosmological effective number of neutrino species, …
Page Time of Primordial Black Holes in the Standard Model and Beyond
Yuber F. Perez-Gonzalez
The Page time marks the moment when the von Neumann entropy of the emitted Hawking radiation equals the Bekenstein-Hawking entropy of an evaporating black hole, which is assumed to…
Dynamic Neutrino Mass Ordering and Its Imprint on the Diffuse Supernova Neutrino Background
Yuber F. Perez-Gonzalez, Manibrata Sen
Neutrino masses may have evolved dynamically throughout the history of the Universe, potentially leading to a mass spectrum distinct from the normal or inverted ordering observed t…
Cosmic neutrino background detection in the minimally extended Standard Model
Yuber F. Perez-Gonzalez, Jack D. Shergold
We investigate the sensitivity of relic neutrino detection methods within the Standard Model, extended to include right-chiral neutrino singlets with Majorana mass terms. In partic…
Measuring the weak mixing angle at SBND
Gustavo F. S. Alves, Antonio P. Ferreira, Shirley Weishi Li +2
The weak mixing angle provides a sensitive test of the Standard Model. We study SBND's sensitivity to the weak mixing angle using neutrino-electron scattering events. We perform a…
Primordial Black Hole Hot Spots and Out-of-Equilibrium Dynamics
Jacob Gunn, Lucien Heurtier, Yuber F. Perez-Gonzalez +1
When light primordial black holes (PBHs) evaporate in the early Universe, they locally reheat the surrounding plasma, creating hot spots with temperatures that can be significantly…
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…
Primordial black hole probes of heavy neutral leptons
Valentina De Romeri, Yuber F. Perez-Gonzalez, Agnese Tolino
Primordial black holes (PBH), while still constituting a viable dark matter component, are expected to evaporate through Hawking radiation. Assuming the semi-classical approximatio…
On the Role of Cosmological Gravitational Particle Production in Baryogenesis
Marcos M. Flores, Yuber F. Perez-Gonzalez
We investigate the generation of the baryon asymmetry within the framework of cosmological gra\-vi\-ta\-tional particle production, employing the Bogoliubov approach. We examine tw…
Probing the Cosmic Neutrino Background and New Physics with TeV-Scale Astrophysical Neutrinos
Jack Franklin, Ivan Martinez-Soler, Yuber F. Perez-Gonzalez +1
We use recent evidence of TeV neutrino events from the most significant astrophysical sources detected by IceCube -- NGC 1068, TXS 0506+056, PKS 1424+240 -- to constrain the local…
Superradiant Leptogenesis
Anish Ghoshal, Yuber F. Perez-Gonzalez, Jessica Turner
We investigate how superradiance affects the generation of baryon asymmetry in a universe with rotating primordial black holes, considering a scenario where a scalar boson is coupl…
Testing high scale supersymmetry via second order gravitational waves
Marcos M. Flores, Alexander Kusenko, Lauren Pearce +2
Supersymmetry predicts multiple flat directions, some of which carry a net baryon or lepton number. Condensates in such directions form during inflation and later fragment into Q-b…
From Dirac to Majorana: the Cosmic Neutrino Background capture rate in the minimally extended Standard Model
Yuber F. Perez-Gonzalez, Manibrata Sen
We investigate the capture rate of the cosmic neutrino background on tritium within the Standard Model, extended to incorporate three right-handed singlet neutrinos with explicit l…
Identifying Spin Properties of Evaporating Black Holes through Asymmetric Neutrino and Photon Emission
Yuber F. Perez-Gonzalez
Kerr black holes radiate neutrinos in an asymmetric pattern, preferentially in the lower hemisphere relative to the black hole's rotation axis, while antineutrinos are predominantl…