Stationary solutions for fast flavor oscillations of a homogeneous dense neutrino gas
| Autor: | Yong Zhong Qian, Zewei Xiong |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
High Energy Astrophysical Phenomena (astro-ph.HE) Nuclear and High Energy Physics 010308 nuclear & particles physics Neutrino oscillations QC1-999 Dense neutrino gas FOS: Physical sciences Polarization (waves) Space (mathematics) 01 natural sciences Computational physics Fast flavor oscillations Homogeneous 0103 physical sciences Precession ddc:530 Neutrino 010306 general physics Adiabatic process Neutrino oscillation Astrophysics - High Energy Astrophysical Phenomena Flavor |
| Zdroj: | Physics Letters B, Vol 820, Iss, Pp 136550-(2021) Physics Letters Physics letters / B 820, 136550 (2021). doi:10.1016/j.physletb.2021.136550 Physics Letters B |
| Popis: | We present a method to find the stationary solutions for fast flavor oscillations of a homogeneous dense neutrino gas. These solutions correspond to collective rotation 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. 7 pages, 7 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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