New developments in flavor evolution of a dense neutrino gas

I Tamborra, S Shalgar - Annual Review of Nuclear and Particle …, 2021 - annualreviews.org
Neutrino–neutrino refraction dominates the flavor evolution in core-collapse supernovae,
neutron star mergers, and the early Universe. Ordinary neutrino flavor conversions develop …

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 …

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 …

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) …

Evolution of collisional neutrino flavor instabilities in spherically symmetric supernova models

Z **ong, MR Wu, G Martínez-Pinedo, T Fischer… - Physical Review D, 2023 - APS
We implement a multigroup and discrete-ordinate neutrino transport model in spherical
symmetry which allows to simulate collective neutrino oscillations by including realistic …

Where, when, and why: Occurrence of fast-pairwise collective neutrino oscillation in three-dimensional core-collapse supernova models

H Nagakura, A Burrows, L Johns, GM Fuller - Physical Review D, 2021 - APS
Fast-pairwise collective neutrino oscillation represents a key uncertainty in the theory of core-
collapse supernova (CCSN). Despite the potentially significant impact on CCSN dynamics, it …

Elaborating the ultimate fate of fast collective neutrino flavor oscillations

S Bhattacharyya, B Dasgupta - Physical Review D, 2022 - APS
Dense clouds of neutrinos and antineutrinos can exhibit fast collective flavor oscillations.
Previously, in [S. Bhattacharyya and B. Dasgupta, Phys. Rev. Lett. 126, 061302 (2021) …

Time-dependent and quasisteady features of fast neutrino-flavor conversion

H Nagakura, M Zaizen - Physical Review Letters, 2022 - APS
Despite the theoretical indication that fast neutrino-flavor conversion (FFC) ubiquitously
occurs iin core-collapse supernovae and binary neutron star mergers, the lack of global …

Collisional instabilities of neutrinos and their interplay with fast flavor conversion in compact objects

L Johns, Z **ong - Physical Review D, 2022 - APS
Fast and collisional flavor instabilities possibly occur in the neutrino decoupling regions of
core-collapse supernovae and neutron-star mergers. To gain a better understanding of the …