论文标题
单位性约束和对撞机搜索深色光子
Unitarity Constraints and Collider Searches for Dark Photons
论文作者
论文摘要
深色光子由各种新的物理模型预测，并且在各种实验中进行了深入研究。在本文的第一部分中，我们从允许的$ vv \ rightarrow vv $散射过程中获得了深色光子参数空间的部分波单位性约束，其中大质量中心能量的极限，其中$ v = w，z $。在本文的第二部分中，使用预期的差异速率进行搜索，并具有逼真的检测器模拟，包括Dilepton和Dilepton上的一组全面的背景过程以及高光度LHC处的光子事件。在这些搜索中，以优化的方式使用敏感的差分分布来确定对暗光子参数空间的敏感性。结果表明，对深色光子模型的敏感性显着，可以将动力学混合强度探测到$（1.4-10）\ times 10^{ - 4} $，对于深色光子质量，$ 15 $ GEV至$ 2 $ $ tev。我们还研究了MUON加速器程序（MAP）对不同质量中心能量的暗光子模型建议的未来MUON对撞机的敏感性。结果表明，未来的MUON对撞机能够以$ 10^{ - 4} $的顺序达到动力学混合的敏感性。
Dark photons are predicted by various new physics models, and are being intensively studied in a variety of experiments. In the first part of this paper, we obtain partial wave unitarity constraints on the dark photon parameter space from the allowed $VV\rightarrow VV$ scattering processes in the limit of large center-of-mass energy, where $V=W,Z$. In the second part of the paper, searches are performed using the expected differential rates with a realistic detector simulation including a comprehensive set of background processes on dilepton and dilepton plus a photon events at the High Luminosity LHC. In these searches, sensitive differential distributions are used in an optimized way to determine the sensitivity to dark photon parameter space. It is shown that remarkable sensitivity to the dark photon model is achieved and kinetic mixing strength can be probed down to $(1.4-10)\times 10^{-4}$ for dark photon mass between $15$ GeV to $2$ TeV. We also investigate the sensitivity of a future muon collider suggested by the Muon Accelerator Program (MAP) to the dark photon model at different center-of-mass energies. It is shown that a future muon collider is able to reach a sensitivity to kinetic mixing at the order of $10^{-4}$.
