论文标题
中微子的自旋振荡散布在旋转的黑洞
Spin oscillations of neutrinos scattered off a rotating black hole
论文作者
论文摘要
研究了中微子的自旋振荡，重力分散在黑洞（BH）上。分析了非旋转和旋转BHS的病例。当中微子与这些引力背景相互作用时，我们得出了自旋振荡的过渡和存活概率的分析表达式。获得的过渡概率取决于冲击参数以及中微子能量和粒子质量。我们发现，超旧式中微子散射出旋转的BH有可能自旋振荡。然后，考虑到被背景问题包围的中微子散射的中微子散射，我们得出了有效的Schrodinger方程来进行自旋振荡。该方程的数值解在具有逼真的吸积盘的超质量BH的情况下获得。旋转效应在Schwarzschild度量中的中微子散射中可以忽略不计。在KERR公制中，我们发现观察到的中微子通量可降低近10％，因为当超层压中微子经历引力散射时自旋振荡。与积聚盘的中微子相互作用会导致外向中微子通量的强度的其他修改。我们考虑中微子天文学的结果的应用。
Spin oscillations of neutrinos, gravitationally scattered off a black hole (BH), are studied. The cases of nonrotating and rotating BHs are analyzed. We derive the analytic expressions for the transition and survival probabilities of spin oscillations when neutrinos interact with these gravitational backgrounds. The obtained transition probabilities depend on the impact parameter, as well as the neutrino energy and the particle mass. We find that there is a possibility of spin oscillations of ultrarelativistic neutrinos scattering off a rotating BH. Then, considering the neutrino scattering off BH surrounded by background matter, we derive the effective Schrodinger equation for spin oscillations. The numerical solution of this equation is obtained in the case of a supermassive BH with a realistic accretion disk. Spin effects turn out to be negligible in the neutrino scattering in the Schwarzschild metric. In the Kerr metric, we find that the observed neutrino fluxes can be reduced almost 10% because of spin oscillations when ultrarelativistic neutrinos experience gravitational scattering. The neutrino interaction with an accretion disk results in the additional modification of the intensities of outgoing neutrino fluxes. We consider the applications of the obtained results for the neutrino astronomy.
