论文标题
大气中的hadrophilic轻暗物质
Hadrophilic Light Dark Matter from the Atmosphere
论文作者
论文摘要
光sub-GEV暗物质（DM）构成了一个未充分散布的目标，超出了典型的直接DM检测实验的优化灵敏度。我们全面研究了与大气碰撞产生的hadrophilic Light DM。可以在多种实验（例如Xenon1t）中有效地观察到源自介子衰减的相对论DM。我们首先包括$η$，$η^{\ prime} $和$ k^+$梅森的衰减，从而提高了在几百MeV以上的DM群众的限制。我们在地球中纳入了DM衰减的精确处理，并证明核外形效应可以显着影响最终可测试的DM参数空间。此外，我们为即将进行的实验（例如Darwin）建立了预测，在GEV量表以下的大量DM质量上。
Light sub-GeV dark matter (DM) constitutes an underexplored target, beyond the optimized sensitivity of typical direct DM detection experiments. We comprehensively investigate hadrophilic light DM produced from cosmic-ray collisions with the atmosphere. The resulting relativistic DM, originating from meson decays, can be efficiently observed in variety of experiments, such as XENON1T. We include for the first time decays of $η$, $η^{\prime}$ and $K^+$ mesons, leading to improved limits for DM masses above few hundred MeV. We incorporate an exact treatment of the DM attenuation in Earth and demonstrate that nuclear form factor effects can significantly impact the resulting testable DM parameter space. Further, we establish projections for upcoming experiments, such as DARWIN, over a wide range of DM masses below the GeV scale.
