论文标题
长期寿命的重型中性钩子，在CMS处有位移淋浴的签名
Long-lived heavy neutral leptons with a displaced shower signature at CMS
论文作者
论文摘要
我们研究了具有新的签名的重型中性瘦素（HNL）的LHC发现潜力：CMS MUON检测器中的流离失所淋浴，从而产生了大量的命中群，形成了流离失所的淋浴。一个新的Delphes模块用于对此类位移衰变的CMS检测器响应进行建模。我们重新解释了专用CMS搜索CMS MUON端盖探测器中的中性长寿命颗粒，以减少HNL方案。我们证明，由于hadroonic $τ$衰减，这种新策略对与$τ$ leptons的活动混合尤其敏感。 $ \ sim 1-6 $ GEV之间的HNL质量可以访问低至$ | v_ {τn} |^{2} \ sim 10^{ - 7} $的混合，探索$τ$ sector中参数空间的独特区域。
We study the LHC discovery potential in the search for heavy neutral leptons (HNL) with a new signature: a displaced shower in the CMS muon detector, giving rise to a large cluster of hits forming a displaced shower. A new Delphes module is used to model the CMS detector response for such displaced decays. We reinterpret a dedicated CMS search for neutral long-lived particles decaying in the CMS muon endcap detectors for the minimal HNL scenario. We demonstrate that this new strategy is particularly sensitive to active-sterile mixings with $τ$ leptons, due to hadronic $τ$ decays. HNL masses between $\sim 1 - 6$ GeV can be accessed for mixings as low as $|V_{τN}|^{2}\sim 10^{-7}$, probing unique regions of parameter space in the $τ$ sector.
