论文标题
镜像暗物质的天体物理边界从二进制脉冲组织得出的时间定时数据
Astrophysical bounds on mirror dark matter derived from binary pulsars timing data
论文作者
论文摘要
镜面暗物质（MDM）被认为是暗物质粒子理论（DM）的优雅框架。据推测，存在一个黑暗的区域，这是普通物质的镜子。除了重力相互作用外，一些MDM模型还允许粒子相互作用镜像和普通物质。从理论和实验角度讨论了中子向镜像中子过渡的可能性。本文是基于以前的工作，在该工作中，我们使用二进制脉冲星的定时数据将中子转化为中子恒星内部中的中子的可能性很严格。这种过渡将意味着中子星的质量损失，导致中子恒星二元系统的轨道时期发生显着变化。因此，这种二进制文件的周期变化的观察界限对上述过渡速率施加了强大的限制，因此对中子 - 镜像中的混合参数$ε'$。我们的限制要比通过$ n-n'$混合解释中子衰减异常所需的值要强得多。
Mirror Dark Matter (MDM) has been considered as an elegant framework for a particle theory of Dark Matter (DM). It is supposed that there exists a dark sector which is mirror of the ordinary matter. Some MDM models allow particle interactions mirror and ordinary matter, in addition to the gravitational interaction. The possibility of neutron to mirror neutron transition has recently been discussed both from theoretical and experimental perspectives. This paper is based on a previous work in which we obtained stringent upper limits on the possibility of converting neutrons to mirror neutrons in the interiors of neutron stars, by using timing data of binary pulsars. Such a transition would imply mass loss in neutron stars leading to a significant change of orbital period of neutron star binary systems. The observational bounds on the period changes of such binaries, therefore put strong limits on the above transition rate and hence on the neutron -- mirror-neutron mixing parameter $ε'$. Our limits are much stronger than the values required to explain the neutron decay anomaly via $n-n'$ mixing.
