论文标题
约束Kamland和Juno的可见中微子衰变
Constraining visible neutrino decay at KamLAND and JUNO
论文作者
论文摘要
我们研究了反应堆中微子实验Kamland和Juno的可见中微子衰变。假设中微子衰变的主要模型，我们对Maparon和Neutmino之间的耦合以及最大的中微子状态的生命 /质量（即$τ_{3} / M_ {3} / M_ {3} $或$ $τ_{2} / M_ {2} / M_ {2} $，以均为正常的命令，以限制限制。我们获得了生命周期的约束$τ_{2} / m_ {2} \ geq 1.4 \ times 10^{ - 9}〜\ rm {s / ev} $在Kamland和juno的倒数质量下，均为90％Cl。在只能为Juno获得界限的正常顺序中，约束比倒数的订购情况温和，$τ_{3} / m_ {3} \ geq 1.0 \ times 10^{ - 10}〜\ rm {s / ev} $ in 90％Cl。我们发现，最轻的中微子质量（$ = m _ {\ rm {lightest}} $），$ m_1（m_3）$对于普通（倒置）质量有序，对不同类型的耦合（标量或伪scalar）的约束，但$ m _ \ rmm _ {绑定只是适中的。
We study visible neutrino decay at the reactor neutrino experiments KamLAND and, JUNO. Assuming the Majoron model of neutrino decay, we obtain constraints on the couplings between Majoron and neutrino as well as on the lifetime/mass of the most massive neutrino state i.e., $τ_{3} / m_{3}$ or $τ_{2} / m_{2}$, respectively, for the normal or the inverted mass orderings. We obtain the constraints on the lifetime $τ_{2} / m_{2} \geq 1.4 \times 10^{-9}~\rm{s/eV}$ in the inverted mass ordering for both KamLAND and JUNO at 90% CL. In the normal ordering in which the bound can be obtained for JUNO only, the constraint is milder than the inverted ordering case, $τ_{3} / m_{3} \geq 1.0 \times 10^{-10}~\rm{s/eV}$ at 90% CL. We find that the dependence of lightest neutrino mass ($=m_{\rm{lightest}}$), $m_1 (m_3)$ for the normal (inverted) mass ordering, on the constraints for the different types of couplings (scalar or pseudo-scalar) is rather strong, but the $m_{\rm{lightest}}$ dependence on the lifetime/mass bound is only modest.
