TY - JOUR
T1 - Stationary solutions for fast flavor oscillations of a homogeneous dense neutrino gas
AU - Xiong, Zewei
AU - Qian, Yong Zhong
N1 - Publisher Copyright:
© 2021 The Authors
PY - 2021/9/10
Y1 - 2021/9/10
N2 - We present a method to find the stationary solutions for fast flavor oscillations of a homogeneous dense neutrino gas. These solutions correspond to collective precession of all neutrino polarization vectors around a fixed axis in the flavor space on average, and are conveniently studied in the co-rotating frame. We show that these solutions can account for the numerical results of explicit evolution calculations, and that even with the simplest assumption of adiabatic evolution, they can provide the average survival probabilities to good approximation. We also discuss improvement of these solutions and their use as estimates of the effects of fast oscillations in astrophysical environments.
AB - We present a method to find the stationary solutions for fast flavor oscillations of a homogeneous dense neutrino gas. These solutions correspond to collective precession of all neutrino polarization vectors around a fixed axis in the flavor space on average, and are conveniently studied in the co-rotating frame. We show that these solutions can account for the numerical results of explicit evolution calculations, and that even with the simplest assumption of adiabatic evolution, they can provide the average survival probabilities to good approximation. We also discuss improvement of these solutions and their use as estimates of the effects of fast oscillations in astrophysical environments.
KW - Dense neutrino gas
KW - Fast flavor oscillations
KW - Neutrino oscillations
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U2 - 10.1016/j.physletb.2021.136550
DO - 10.1016/j.physletb.2021.136550
M3 - Article
AN - SCOPUS:85111516931
SN - 0370-2693
VL - 820
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
M1 - 136550
ER -