具有长程暗物质-重子相互作用的日震学
Helioseismology with long range dark matter-baryon interactions
摘要：
假设存在一个原始的不对称性在黑暗的部门，我们研究如何DM重子长程相互作用，诱导的动力学混合的一个新的$U(1)$规范玻色子和光子，影响太阳的演变，反过来又从日震学获得的声速剖面。由于明确依赖于交换动量的微分截面（卢瑟福散射），我们发现，暗物质粒子的质量为$\sim 10\;{\rm GeV}$，动力学混合参数的顺序为$10^{-9}$和调解人的质量小于几兆电子伏提高最好的太阳模型和日震数据之间的协议，而不排除直接检测实验。特别是，\LUX \探测器将很快能够约束或确认我们的最佳拟合太阳模型中存在一个黑暗的部门与远程相互作用，调和日震学与热中微子的结果。
英文摘要：
Assuming the existence of a primordial asymmetry in the dark sector, we study how DM-baryon long-range interactions, induced by the kinetic mixing of a new $U(1)$ gauge boson and the photon, affects the evolution of the Sun and in turn the sound speed profile obtained from helioseismology. Thanks to the explicit dependence on the exchanged momenta in the differential cross section (Rutherford-like scattering), we find that dark matter particles with a mass of $\sim 10\;{\rm GeV}$, kinetic mixing parameter of the order of $10^{-9}$ and a mediator with a mass smaller than a few MeV improve the agreement between the best solar model and the helioseismic data without being excluded by direct detection experiments. In particular, the \LUX\ detector will soon be able to either constrain or confirm our best fit solar model in the presence of a dark sector with long-range interactions that reconcile helioseismology with thermal neutrino results.
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