论文标题
在LHC搜索矢量类$ b $ quarks的单一生产
Search for single production of vectorlike $B$-quarks at the LHC
论文作者
论文摘要
除了标准模型以外的许多新物理学的情况下，已经提出了新的矢量夸克，该模型解决了层次结构问题，并且可能在大型强子撞机〜（LHC）中有可能发现。基于独立于模型的框架，我们建议搜索矢量类$ b $ -quark〜（VLQ- $ B $），并通过$ B $ -Gluon Fusion通过铬磁相互作用专注于共鸣。然后，我们在14 TEV LHC上通过$ b \ to Tw $ decay模式探索VLQ-$ b $的可能信号。经过信号和背景事件的快速模拟后，在$κ_{b} -m_b $的参数平面中，$2σ$排除的区域以及$5σ$ Discovery可以触及到，在LHC上获得了300〜（3000）fb $^{-1} $的集成亮度，在Dilepton最终的最终状态下。
New vectorlike quarks have been proposed in many scenarios of new physics beyond the Standard Model, which address the hierarchy problem and may be potentially discovered at the Large Hadron Collider~(LHC). Based on a model-independent framework, we propose to search for the vectorlike $B$-quark~(VLQ-$B$) and focus on resonant production via $b$-gluon fusion through chromomagnetic interactions. We then explore the possible signals of the VLQ-$B$ through the $B\to tW$ decay mode at the 14 TeV LHC. After a rapid simulation of signal and background events, the $2σ$ excluded regions and the $5σ$ discovery reach in the parameter plane of $κ_{B}-M_B$ are obtained at the LHC with an integrated luminosity of 300~(3000) fb$^{-1}$ in the dilepton final states.
