2020/12/07 by A. V. Chukhnova, Chukhnova, A. V., А.Е. Лобанов +2
Physics and Astronomy · #Anisotropy #Astrophysics #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #Field (mathematics) #Geometry #High Energy Astrophysical Phenomena (astro-ph.HE) #High Energy Physics - Phenomenology (hep-ph) #Magnetar #Magnetic field #Neutrino #Neutrino Physics Research #Neutrino oscillation #Neutron star #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Rotation (mathematics) #Spin (aerodynamics) #astro-ph.HE #hep-ph
paper · pdf · doi:10.48550/arxiv.2012.03901
published in arXiv (Cornell University) (Cornell University) · 13 pages, 4 figures, LaTeX
arxiv created 2020/12/07 · openalex publication_date 2020/12/07 · arxiv updated 2020/12/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the propagation of neutrinos from compact astrophysical objects with strong magnetic field, such as magnetars. Both neutrino spin rotation and oscillations in a realistic three-flavor model are taken into account. We solve the neutrino evolution equation in the magnetic field near the object and obtain the probabilities of all possible spin-flavor transitions. Assuming that neutrinos are produced in the interior of the star being in their left-handed state with electron flavor, we use these spin-flavor transition probabilities to estimate the fraction of neutrinos, which change their helicity during propagation to the Earth and thus become unobservable. Using the model of the magnetar with dipolar magnetic field, we demonstrate anisotropy in the left-handed and right-handed neutrino fluxes from such astrophysical objects.