ILC是一台天然的SUSY发现机器和精密显微镜：从光希格斯玻色子到统一性测试
The ILC as a natural SUSY discovery machine and precision microscope: from light higgsinos to tests of unification
摘要：
在简单超对称模型中，电弱自然性的要求意味着存在一个由四个质量为$\sim 100-300$ \，GeV的轻希格斯玻色子组成的星系团，越轻越好。虽然在大型强子对撞机上观察这种光压缩光谱可能具有挑战性，但带有$\sqrt{s}>2m_{\rm higgsino}$的国际线性$e^+e^-$对撞机（ILC）将既是超对称发现机器，也是精密显微镜。我们研究higgsino对生产签名在ILC的基础上充分，\texttt{Geant4-}为基础的模拟ILD检测器的概念。我们研究了几个基准的情况下，可能是具有挑战性的发现在HL-LHC由于$20$和$4$ \，GeV之间的higgsino状态之间的质量差异。假设积分光度为$\sqrt{s}= 500$，GeV和1000，fb $^{-1}$，在质量差较大的情况下，可以测量单个希格西诺质量到$1-2\%$的精度，在质量差最小的情况下，可以测量到$5\%$的精度。的higgsino质量分裂是敏感的电弱gaugino质量，并允许提取gaugino质量$\sim 3-20\%$（取决于模型）。通过重整化群运行外推高吉诺质量可以检验高吉诺质量统一的假设。我们还研究了自然广义海市蜃楼调解的情况下，在中间尺度的统一的高吉诺群众显然会产生一个自然的超对称谱有点超出HL-LHC的范围。
英文摘要：
The requirement of electroweak naturalness in simple supersymmetric models implies the existence of a cluster of four light higgsinos with mass $\sim 100-300$\,GeV, the lighter the better. While such light compressed spectra may be challenging to observe at LHC, the International Linear $e^+e^-$ Collider (ILC) with $\sqrt{s}>2m_{\rm higgsino}$ would serve as both a SUSY discovery machine and a precision microscope. We study higgsino pair production signatures at the ILC based on full, \texttt{Geant4-}based simulation of the ILD detector concept. We examine several benchmark scenarios that may be challenging for discovery at HL-LHC due to mass differences between the higgsino states between $20$ and $4$\,GeV. Assuming $\sqrt{s}= 500$\,GeV and 1000\,fb$^{-1}$ of integrated luminosity, the individual higgsino masses can be measured to $1-2\%$ precision in case of the larger mass differences, and at the level of $5\%$ for the smallest mass difference case. The higgsino mass splittings are sensitive to the electroweak gaugino masses and allow extraction of gaugino masses to $\sim 3-20\%$ (depending on the model). Extrapolation of gaugino masses via renormalization group running can test the hypothesis of gaugino mass unification. We also examine a case with natural generalized mirage mediation where the unification of gaugino masses at an intermediate scale apparently gives rise to a natural SUSY spectrum somewhat beyond the reach of HL-LHC.
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。
