论文标题
抬起Kev-Mass无菌中微子上的核心溢出超新星界限
Lifting the core-collapse supernova bounds on keV-mass sterile neutrinos
论文作者
论文摘要
我们探索了从超新星核心中电子和无菌中微子与keV质量之间的混合引起的能量和熵传输以及Lepton数量变化。我们通过包括普通物质效应，无菌和电子抗神经酮之间的重新分配以及第一次碰撞无菌颗粒的碰撞产生，对无菌电子中微子混合的径向和时间依赖性处理。由于在核心的组成和热力学特性上产生无菌颗粒引起的动态反馈只会导致对超新星物理学对大混合角的主要影响（$ \ sin^2 2θ> 10θ> 10^ - 10^{ - 10} $）。 Our findings suggest that a self-consistent appraisal of the electron-sterile conversion physics in the supernova core would relax the bounds on the sterile neutrino mixing parameters reported in the literature for mixing angles smaller than $10^{-6}$, leaving the parameter space of the mass and mixing angles of sterile neutrinos relevant to dark matter searches unconstrained by supernovae.
We explore the energy and entropy transport as well as the lepton number variation induced from the mixing between electron and sterile neutrinos with keV mass in the supernova core. We develop a radial- and time-dependent treatment of the sterile-electron neutrino mixing, by including ordinary matter effects, reconversions between sterile and electron antineutrinos, as well as the collisional production of sterile particles for the first time. The dynamical feedback due to the production of sterile particles on the composition and thermodynamic properties of the core only leads to major implications for the supernova physics for large mixing angles ($\sin^2 2 θ> 10^{-10}$). Our findings suggest that a self-consistent appraisal of the electron-sterile conversion physics in the supernova core would relax the bounds on the sterile neutrino mixing parameters reported in the literature for mixing angles smaller than $10^{-6}$, leaving the parameter space of the mass and mixing angles of sterile neutrinos relevant to dark matter searches unconstrained by supernovae.
