Neutrinos from dense environments: Flavor mechanisms, theoretical approaches, observations, and new directions

MC Volpe - Reviews of Modern Physics, 2024 - APS
Neutrino masses and mixings produce vacuum oscillations, an established quantum
mechanical phenomenon. In matter, the Mikheev-Smirnov-Wolfenstein effect, due to …

Neutrinos and nucleosynthesis of elements

T Fischer, G Guo, K Langanke… - Progress in Particle and …, 2024 - Elsevier
Neutrinos are known to play important roles in many astrophysical scenarios from the early
period of the big bang to current stellar evolution being a unique messenger of the fusion …

Fast neutrino flavor conversion in core-collapse supernovae: A parametric study in 1D models

J Ehring, S Abbar, HT Janka, G Raffelt, I Tamborra - Physical Review D, 2023 - APS
We explore the impact of small-scale flavor conversions of neutrinos, the so-called fast flavor
conversions (FFCs), on the dynamical evolution and neutrino emission of core-collapse …

Evaluating approximate asymptotic distributions for fast neutrino flavor conversions in a periodic 1D box

Z **ong, MR Wu, S Abbar, S Bhattacharyya, M George… - Physical Review D, 2023 - APS
The fast flavor conversions (FFCs) of neutrinos generally exist in core-collapse supernovae
and binary neutron-star merger remnants and can significantly change the flavor …

Roles of fast neutrino-flavor conversion on the neutrino-heating mechanism of core-collapse supernova

H Nagakura - Physical Review Letters, 2023 - APS
One of the greatest uncertainties in any modeling of the inner engine of core-collapse
supernova (CCSN) is neutrino-flavor conversions driven by neutrino self-interactions. We …

Simple method for determining asymptotic states of fast neutrino-flavor conversion

M Zaizen, H Nagakura - Physical Review D, 2023 - APS
Neutrino-neutrino forward scatterings potentially induce collective neutrino oscillation in
dense neutrino gases in astrophysical sites such as core-collapse supernovae (CCSNe) …

Characterizing quasisteady states of fast neutrino-flavor conversion by stability and conservation laws

M Zaizen, H Nagakura - Physical Review D, 2023 - APS
The question of what ingredients characterize the quasisteady state of fast neutrino-flavor
conversion (FFC) is one of the longstanding riddles in neutrino oscillation. Addressing this …

Collisional flavor instability in dense neutrino gases

Z **ong, L Johns, MR Wu, H Duan - Physical Review D, 2023 - APS
Charged-current neutrino processes such as ν e+ n⇌ p+ e-and ν¯ e+ p⇌ n+ e+ destroy the
flavor coherence among the weak-interaction states of a single neutrino and thus damp its …

Basic characteristics of neutrino flavor conversions in the postshock regions of core-collapse supernova

H Nagakura, M Zaizen - Physical Review D, 2023 - APS
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 …

Two-moment neutrino flavor transformation with applications to the fast flavor instability in neutron star mergers

E Grohs, S Richers, SM Couch, F Foucart… - The Astrophysical …, 2024 - iopscience.iop.org
Multi-messenger astrophysics has produced a wealth of data with much more to come in the
future. This enormous data set will reveal new insights into the physics of core-collapse …