论文标题
通过未来的实验探测浅黑色标量
Probing light dark scalars with future experiments
论文作者
论文摘要
我们研究了一个黑暗扇区，其中包含一对光非分类标量颗粒，其中质量在MEV-GEV范围内，通过较重的介体耦合到可见的扇区。最重的黑性状态是长寿的，其衰减提供了新的可测试信号。我们使用拟议的Beam-Dump设施船以及拟议的LHC实验FASER和MATHUSLA分析了检测前景。此外，我们考虑了Beam-Dump实验魅力和山脉（LEP，LHC和Babar）的边界。我们介绍了一个有效的田间理论，其中重新组合了重型介体，以及一个简化的模型，其中包含矢量 - 玻色介媒体，该模型可以是沉重的$ \ gtrsim \ gtrsim \ Mathcal {o}（1）$ tev，或者$ \ \ \ $ \ Mathcal {O}（O}（O}（10）$ GEV。我们表明，未来的实验可以测试目前尚未探索的参数空间的大部分，并且它们与未来的高光度LHC搜索相辅相成。
We investigate a dark sector containing a pair of light non-degenerate scalar particles, with masses in the MeV-GeV range, coupled to the visible sector through heavier mediators. The heaviest dark state is long-lived, and its decays offer new testable signals. We analyze the prospects for detection with the proposed beam-dump facility SHiP, and the proposed LHC experiments FASER and MATHUSLA. Moreover, we consider bounds from the beam-dump experiment CHARM and from colliders (LEP, LHC and BaBar). We present our results both in terms of an effective field theory, where the heavy mediators have been integrated out, and of a simplified model containing a vector boson mediator, which can be heavy $\gtrsim\mathcal{O}(1)$ TeV, or light $\mathcal{O}(10)$ GeV. We show that future experiments can test large portions of the parameter space currently unexplored, and that they are complementary to future High-Luminosity LHC searches.
