80 citations · 1.2k across the 83 of their papers we have counts for
14 papers · 1 filter
Identifying Energy-Dependent Flavor Transitions in High-Energy Astrophysical Neutrino Measurements
Qinrui Liu, Damiano F. G. Fiorillo, Carlos A. Argüelles +3
The flavor composition of TeV--PeV astrophysical neutrinos, i.e., the proportion of neutrinos of different flavors in their flux, is a versatile probe of high-energy astrophysics a…
Collisions and collective flavor conversion: Integrating out the fast dynamics
Damiano F. G. Fiorillo, Ian Padilla-Gay, Georg G. Raffelt
In dense astrophysical environments, notably core-collapse supernovae and neutron star mergers, neutrino-neutrino forward scattering can spawn flavor conversion on very short scale…
TeV neutrinos and hard X-rays from relativistic reconnection in the corona of NGC 1068
Damiano F. G. Fiorillo, Maria Petropoulou, Luca Comisso +2
The recent discovery of astrophysical neutrinos from the Seyfert galaxy NGC 1068 suggests the presence of non-thermal protons within a compact "coronal" region close to the central…
Two-detector flavor sensitivity to ultra-high-energy cosmic neutrinos
Federico Testagrossa, Damiano F. G. Fiorillo, Mauricio Bustamante
Ultra-high-energy (UHE) cosmic neutrinos, with energies above 100 PeV, could be finally discovered in the near future. Measuring their flavor composition would reveal information a…
Supernova Simulations Confront SN 1987A Neutrinos
Damiano F. G. Fiorillo, Malte Heinlein, Hans-Thomas Janka +3
We return to interpreting the historical SN~1987A neutrino data from a modern perspective. To this end, we construct a suite of spherically symmetric supernova models with the Prom…
Hunting for bumps in the diffuse high-energy neutrino flux
Damiano F. G. Fiorillo, Mauricio Bustamante
The origin of the TeV--PeV astrophysical neutrinos seen by the IceCube telescope is unknown. If they are made in proton-photon interactions in astrophysical sources, their spectrum…
Supernova Emission of Secretly Interacting Neutrino Fluid: Theoretical Foundations
Damiano F. G. Fiorillo, Georg Raffelt, Edoardo Vitagliano
Neutrino-neutrino scattering could have a large secret component that would turn neutrinos within a supernova (SN) core into a self-coupled fluid. Neutrino transport within the SN…
Large Neutrino Secret Interactions, Small Impact on Supernovae
Damiano F. G. Fiorillo, Georg Raffelt, Edoardo Vitagliano
When hypothetical neutrino secret interactions (SI) are large, they form a fluid in a supernova (SN) core, flow out with sonic speed, and stream away as a fireball. For the firs…
Searches for dark matter decay with ultra-high-energy neutrinos endure backgrounds
Damiano F. G. Fiorillo, Victor Valera, Mauricio Bustamante +1
Next-generation ultra-high-energy (UHE) neutrino telescopes, presently under planning, will have the potential to probe the decay of heavy dark matter (DM) into UHE neutrinos, with…
Multimessenger Constraints on Radiatively Decaying Axions from GW170817
Melissa Diamond, Damiano F. G. Fiorillo, Gustavo Marques-Tavares +2
The metastable hypermassive neutron star produced in the coalescence of two neutron stars can copiously produce axions that radiatively decay into ~MeV photons. T…
Flavor solitons in dense neutrino gases
Damiano F. G. Fiorillo, Georg Raffelt
We consider a dense neutrino gas in the "fast-flavor limit" (vanishing neutrino masses). For the first time, we identify exact solutions of the nonlinear wave equation in the form…
Axion-sourced fireballs from supernovae
Melissa Diamond, Damiano F. G. Fiorillo, Gustavo Marques-Tavares +1
New feebly interacting particles would emerge from a supernova core with 100-MeV-range energies and produce -rays by subsequent decays. These would contribute to the diffuse cos…
Slow and fast collective neutrino oscillations: Invariants and reciprocity
Damiano F. G. Fiorillo, Georg G. Raffelt
The flavor evolution of a neutrino gas can show ''slow'' or ''fast'' collective motion. In terms of the usual Bloch vectors to describe the mean-field density matrices of a homogen…
Bump-hunting in the diffuse flux of high-energy cosmic neutrinos
Damiano F. G. Fiorillo, Mauricio Bustamante
The origin of the bulk of the high-energy astrophysical neutrinos seen by IceCube, with TeV--PeV energies, is unknown. If they are made in photohadronic, i.e., proton-photon, inter…