8 papers
Neutrino quantum kinetics for fast flavor conversion in a time-dependent environment
Zewei Xiong, Meng-Ru Wu
Fast flavor conversions (FFCs) of neutrinos, driven by the fast flavor instability (FFI), can reshape the neutrino flavor content in dense astrophysical environments such as core-c…
Machine Learning Detection of Non-Axisymmetric Fast Flavor Instabilities in Compact Objects
Madhurima Chakraborty, Sajad Abbar, Meng-Ru Wu +2
The paper applies machine‑learning classifiers to identify non‑axisymmetric electron lepton number (ELN) crossings, which signal fast neutrino flavor instabilities, using angular m…
Self-consistent 3D radiative transfer for kilonovae: directional spectra from merger simulations
Luke J. Shingles, Christine E. Collins, Vimal Vijayan +7
We present three-dimensional radiative transfer calculations for the ejecta from a neutron star merger that include line-by-line opacities for tens of millions of bound-bound trans…
Occurrence of fast neutrino flavor conversions in QCD phase-transition supernovae
Zewei Xiong, Meng-Ru Wu, Noshad Khosravi Largani +2
Core-collapse supernovae undergoing a first-order quantum chromodynamics (QCD) phase transition experience the collapse of the central proto-neutron star that leads to a second bou…
Flavor Equilibration of Supernova Neutrinos: Exploring the Dynamics of Slow Modes
Ian Padilla-Gay, Heng-Hao Chen, Sajad Abbar +2
Neutrinos experience collective flavor conversion in extreme astrophysical environments such as core-collapse supernovae (CCSNe). One manifestation of collective conversion is slow…
Fast neutrino flavor conversions in a supernova: Emergence, evolution, and effects
Zewei Xiong, Meng-Ru Wu, Manu George +4
Fast flavor conversions (FFCs) of neutrinos, which can occur in core-collapse supernovae (CCSNe), are multiangle effects. They depend on the angular distribution of the neutrino's…