中微子在ILC上背叛了它们的单电子性质
Neutralinos betray their singlino nature at the ILC
摘要：
大型强子对撞机和未来的线性对撞机最具挑战性的任务之一不仅是观察标准模型之外的物理，而且要清楚地识别潜在的新物理模型。在本文中，我们集中在两个不同的超对称模型，MSSM和NMSSM之间的区别，因为它们可以导致类似的低能谱。NMSSM在MSSM粒子谱中增加了一个单线态超场，并简化了嵌入一个测量质量约为125.5 GeV的类SM希格斯候选粒子的过程。在部分参数空间中，希格斯扇区本身并不能为基础模型提供足够的指示。我们发现，探索高吉诺/希格西诺部门可以提供一个有意义的方式来区分这两个模型。假设只有最轻的电荷伴子和中性伴子的质量和极化截面$e^+e^-\to \tildeχ^0_i\tildeχ^0_j$，$\tildeχ^+_i\tildeχ^-_j$是可访问的线性对撞机，我们重建的基本MSSM参数$M_1$，$M_2$，$μ$，$\tanβ$和研究是否一个独特的模型区分是可能的基础上的限制信息。根据最轻的中性伴子态的单斜掺合物，以及它们的希格西诺或高吉诺性质，我们定义了几类方案，并研究了实验分化的前景。
英文摘要：
It is one of the most challenging tasks at the Large Hadron Collider and at a future Linear Collider not only to observe physics beyond the Standard Model, but to clearly identify the underlying new physics model. In this paper we concentrate on the distinction between two different supersymmetric models, the MSSM and the NMSSM, as they can lead to similar low energy spectra. The NMSSM adds a singlet superfield to the MSSM particle spectrum and simplifies embedding a SM-like Higgs candidate with the measured mass of about 125.5 GeV. In parts of the parameter space the Higgs sector itself does not provide sufficient indications for the underlying model. We show that exploring the gaugino/higgsino sectors could provide a meaningful way to distinguish the two models. Assuming that only the lightest chargino and neutralino masses and polarized cross sections $e^+e^-\to \tildeχ^0_i\tildeχ^0_j$, $\tildeχ^+_i\tildeχ^-_j$ are accessible at the linear collider, we reconstruct the fundamental MSSM parameters $M_1$, $M_2$, $μ$, $\tanβ$ and study whether a unique model distinction is possible based on this restricted information. Depending on the singlino admixture in the lightest neutralino states, as well as their higgsino or gaugino nature, we define several classes of scenarios and study the prospects of experimental differentiation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
