论文标题
太阳能$ \barν_e$ flux：在中微子磁矩和太阳能磁场上重新审视界限
Solar $\barν_e$ flux: Revisiting bounds on neutrino magnetic moments and solar magnetic field
论文作者
论文摘要
中微子过渡偶极矩与磁场的相互作用会导致中微子自旋流动性进动（SFP）的现象。对于主要中微子，太阳中微子和风味振荡的SFP的组合作用将表现为来自太阳的电子抗瑞氏菌的小但可检测到的电子通量。这种通量的不观察会限制中微子磁矩$μ$的产物和太阳能磁场的强度$ b $。我们为在三流风框架中的预期$ \barν_e$外观概率得出了一个简单的分析表达式，我们使用它来重新审视$μb$的现有实验界。还进行了完整的数值计算以检查分析结果的有效性。我们还以能量式形式介绍了数值结果，可方便地分析当前和将来的实验，以搜索太阳能$ \barν_e$ flux。此外，我们对中微子磁矩的其他现有限制进行了全面的汇编，以及根据基本中微子磁矩和松弛混合参数的探测有效磁矩的表达。
The interaction of neutrino transition magnetic dipole moments with magnetic fields can give rise to the phenomenon of neutrino spin-flavour precession (SFP). For Majorana neutrinos, the combined action of SFP of solar neutrinos and flavour oscillations would manifest itself as a small, yet potentially detectable, flux of electron antineutrinos coming from the Sun. Non-observation of such a flux constrains the product of the neutrino magnetic moment $μ$ and the strength of the solar magnetic field $B$. We derive a simple analytical expression for the expected $\barν_e$ appearance probability in the three-flavour framework and we use it to revisit the existing experimental bounds on $μB$. A full numerical calculation has also been performed to check the validity of the analytical result. We also present our numerical results in energy-binned form, convenient for analyses of the data of the current and future experiments searching for the solar $\barν_e$ flux. In addition, we give a comprehensive compilation of other existing limits on neutrino magnetic moments and of the expressions for the probed effective magnetic moments in terms of the fundamental neutrino magnetic moments and leptonic mixing parameters.
