论文标题
中子恒星冷却的中子麦芽中性振荡的限制
Constraints on Neutron-Mirror-Neutron Oscillation from Neutron Star Cooling
论文作者
论文摘要
我们通过分析其对中子星（NS）加热的影响来解决一种限制中子晶状体中子混合（$ε_{nn'} $）的方法。此方法采用NSS表面温度的观察界限来约束$ε_{Nn'} $。有人建议，以这种方式获得的界限非常严格，以至于在当前计划的各种实验室的陆地实验中，它将排除任何发现$ n-n'$振荡的发现。这个结论促使我们更详细地对此建议进行批判性分析。在本说明中，我们指出了几乎精确的镜像模型中存在一个非常有趣的新效果，这可能会显着影响该界限。新元素是，在几乎精确的镜像模型中，有$β$衰减的镜像类似物，即$ n'\ to p' + e' + e' + \barν'_e$，它创建了镜子粒子$ n'$，$ p'$，$ e'$，$ e'$，$ d'$和HE HE HE HE $'$。由此产生的$ e'ub可以“抢” $ n \ to从NS产生的能量，这是通过$ e-e-e'$ sctivation通过在镜子粒子中（分钟）millicharge的存在来实现的。在这些模型中，很可能在镜子粒子上如此微小的毫米。这会导致能量通过快速镜子Bremsstrahung发射为未观察到的镜像光子，其效果是放松$ε_{nn'} $的严格界限。
We address a method of limiting neutron-mirror neutron mixing ($ε_{nn'}$) by analyzing its effect on neutron star (NS) heating. This method employs observational bounds on the surface temperature of NSs to constrain $ε_{nn'}$. It has been suggested that the bound obtained this way is so stringent that it would exclude any discovery of $n-n'$ oscillation in the currently planned terrestrial experiments at various laboratories. This conclusion motivated us to critically analyze this suggestion in more detail. In this note, we point out a very interesting new effect present in nearly exact mirror models, which can significantly affect this bound. The new element is that in nearly exact mirror models there is the mirror analog of $β$ decay, i.e. $n' \to p' + e' + \barν'_e$, which creates a cloud of mirror particles $n'$, $p'$, $e'$, $D'$ and He$'$ inside the NS. The resulting $e'$ can "rob" the energy generated by the $n \to n'$ transition from the NS, via $e-e'$ scattering enabled by the presence of a (minute) millicharge in mirror particles. Such a tiny millicharge on mirror particles is highly likely in these models. This results in energy being emitted as unobserved mirror photons via fast mirror bremsstrahlung, whose effect is to relax the stringent bounds on $ε_{nn'}$.
