论文标题
ILD基准：搜索与$ \ sqrt {s} = 500 $ GEV相关的$ z $ boson产生的额外标量
ILD Benchmark: Search for Extra Scalars Produced in Association with a $Z$ boson at $\sqrt{s}=500$ GeV
论文作者
论文摘要
我们根据国际大型检测器（ILD）的完整模拟在国际线性撞机（ILC）上发现额外的标量玻色子$ s^0 $的前景。为了尽可能以AS独立于模型的方式提供结果，分析使用标量的后座，将$ z $玻色子衰减成一对imuons，$ e^+e^ - \ \ toμms^{0} $。该过程是$ \ sqrt {s} = 500 $ GEV的ILD检测器性能的物理基准，特别是用于MUON ID和动量分辨率的物理基准，以及鉴定初始状态辐射光子及其能量测量。作为最终结果，相对于Higgs-strahlung进程的横截面的标准模型值，评估了在2 $σ$级别下发现额外标量的灵敏度。在分析中考虑了两个检测器模型IDR-L和IDR-S，它们的跟踪体积半径，纵横比和磁场强度不同。虽然两个检测器模型在重建的不变型脉冲质量的精度上显示出明显的差异，但在最终结果的水平上没有发现差异。
We study the prospects for discovering an extra scalar boson $S^0$ at the International Linear Collider (ILC) based on a full simulation of the International Large Detector (ILD). In order to provide results in an as model-independent way as possible, the analysis uses the recoil of the scalar against a $Z$ boson decaying into a pair of muons, $e^+e^- \to μμS^{0}$. This process serves as a physics benchmark for the ILD detector performance at $\sqrt{s}=500$ GeV, specifically for the muon ID and momentum resolution, as well as for the identification of initial state radiation photons and their energy measurement. As final results, the sensitivities for discovering the extra scalars at 2 $σ$ level are evaluated in terms of a scale factor $\sin^2θ$ with respect to the Standard Model value of the cross section for the Higgs--strahlung process. Two detector models, IDR-L and IDR-S, are considered in the analysis, which differ in radius of the tracking volume, aspect ratio and strength of the magnetic field. While the two detector models show a visible difference in the precision of the reconstructed invariant di-muon mass, no difference is found at the level of the final results.
