论文标题
未来希格斯工厂的远见门户：维度六操作员的作用
The see-saw portal at future Higgs factories: the role of dimension six operators
论文作者
论文摘要
我们研究了具有Electroweak量表的标准模型的扩展，右撇子单元费$ n $，可引起中微子群众，再加上一个通用的新物理部门，以较高的比例$λ$。后者以$ν$ smeft的语言为有效的操作员进行了参数。我们研究了其现象学，考虑到运营商最多$ d = 6 $，除了与主动中微子混合而产生的$ n $外，还存在额外的生产和衰减模式。我们专注于四个Fermi操作员的生产，并确定最相关的其他衰减模式为$ n \ to n toνγ$，$ n \ to 3f $。我们评估了未来希格斯工厂对参数空间区域$ν$ smeft的敏感性，在该区域，新状态迅速衰减，流离失所或在检测器长度上稳定。我们表明，根据对撞机的考虑，可以探索新的物理规模高达$ 5-60 \; $ tev。
We study an extension of the Standard Model with electroweak scale right-handed singlet fermions $N$ that induces neutrino masses, plus a generic new physics sector at a higher scale $Λ$. The latter is parametrized in terms of effective operators in the language of the $ν$SMEFT. We study its phenomenology considering operators up to $d=6$, where additional production and decay modes for $N$ are present in addition to those arising from the mixing with the active neutrinos. We focus on the production with four-Fermi operators and we identify the most relevant additional decay modes to be $N\to νγ$ and $N\to 3f$. We assess the sensitivity of future Higgs factories on the $ν$SMEFT in regions of the parameter space where the new states decay promptly, displaced or are stable on detector lengths. We show that new physics scale up to $5-60\;$TeV can be explored, depending on the collider considered.
