作者: Irene Tamborra , Shashank Shalgar , Ian Padilla-Gay
DOI: 10.1088/1475-7516/2020/06/048
关键词: Lepton 、 Term (time) 、 Equations of motion 、 Particle physics 、 Field (physics) 、 Physics 、 Neutrino 、 Supernova 、 Asymmetry 、 Flux
摘要: Neutrino flavor conversions may dramatically affect the inner working of compact astrophysical objects as well synthesis heavier elements. We present first sophisticated numerical solution neutrino conversion within a (2+1+1) dimensional setup: we include advective term in equations motion and track evolution two spatial dimensions, one angular variable, time. Notably, hinders development pairwise conversions, if conditions favoring such (i.e., crossings between distributions $\nu_e$ $\bar\nu_e$ or non-negligible flux neutrinos traveling backward with respect to main propagation direction) exist for time scales shorter than typical scale term. As consequence, fast can only occur when are self-sustained global, ones induced by lepton emission asymmetry (LESA) core-collapse supernovae. Our work highlights major impact dynamical field on growth instabilities strong interplay classical quantum effects. Critical limitations linear stability analysis, used predict instabilities, also pointed out.