论文标题
新颖的夸克部门中新型的风味中性电流
Novel flavour-changing neutral currents in the top quark sector
论文作者
论文摘要
我们证明，在电动尺度上由嗜血量标量介导的顶部扇形中的风味中性电流很容易在新物理学的情况下，尤其是在复合higgs模型中出现。我们还表明，这种相互作用受到当前实验的约束，而可以在LHC中以罕见的顶级衰减进行搜索，更一般而言，在频道中，$ pp \ to ts（s）+j $，带有$ s \ to \ ell^+el^+\ ell^ - $。我们在这方面提供了专门的分析，可以使用$ \ Mathcal {l} = 150 $ fb $^{ - 1} $的集成光度探测到$λ\ sim $ 90 TEV的截止量表。
We demonstrate that flavour-changing neutral currents in the top sector, mediated by leptophilic scalars at the electroweak scale, can easily arise in scenarios of new physics, and in particular in composite Higgs models. We moreover show that such interactions are poorly constrained by current experiments, while they can be searched for at the LHC in rare top decays and, more generally, in the channels $pp\to tS(S)+j$, with $S\to\ell^+\ell^-$. We provide dedicated analyses in this respect, obtaining that cut-off scales as large as $Λ\sim$ 90 TeV can be probed with an integrated luminosity of $\mathcal{L} = 150$ fb$^{-1}$.
