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Universality of the Neutrino Collisional Flavor Instability in Core Collapse Supernovae
Jiabao Liu, Hiroki Nagakura, Ryuichiro Akaho +3
Neutrinos are known to undergo flavor conversion processes among the three flavors. The fast flavor conversion (FFC) has been the central piece of flavor conversions taking place i…
Collisional and Fast Neutrino Flavor Instabilities in Two-dimensional Core-collapse Supernova Simulation with Boltzmann Neutrino Transport
Ryuichiro Akaho, Jiabao Liu, Hiroki Nagakura +2
We present a comprehensive study on the occurrences of the collisional flavor instability (CFI) and the fast flavor instability (FFI) of neutrinos based on a two-dimensional (2D) c…
Diffuse supernova neutrino background with up-to-date star formation rate measurements and long-term multidimensional supernova simulations
Nick Ekanger, Shunsaku Horiuchi, Hiroki Nagakura +1
The sensitivity of current and future neutrino detectors like Super-Kamiokande (SK), JUNO, Hyper-Kamiokande (HK), and DUNE is expected to allow for the detection of the diffuse sup…
Collisional flavor swap with neutrino self-interactions
Chinami Kato, Hiroki Nagakura, Lucas Johns
Neutrinos play pivotal roles in determining fluid dynamics, nucleosynthesis, and their observables in core-collapse supernova (CCSN) and binary neutron star merger (BNSM). In this…
Correlation analysis of gravitational waves and neutrino signals to constrain neutrino flavor conversion in core-collapse supernova
Hiroki Nagakura, David Vartanyan
Recent multi-dimensional (multi-D) core-collapse supernova (CCSN) simulations characterize gravitational waves (GWs) and neutrino signals, offering insight into universal propertie…
Basic characteristics of neutrino flavor conversions in the post-shock regions of core-collapse supernova
Hiroki Nagakura, Masamichi Zaizen
One of the active debates in core-collapse supernova (CCSN) theory is how significantly neutrino flavor conversions induced by neutrino-neutrino self-interactions change the conven…