论文标题
在LHC上与中微子对相关的顶级夸克对生产中新物理的迹象
Signs of new physics in top quark pair production associated with a neutrino pair at the LHC
论文作者
论文摘要
在本文中，我们使用与Neutrino对相关的顶级夸克对生产（$ t \ bar {t}ν_{l} \ bar {ν_{ν_{l}} $）在LHC上检查了顶级夸克与$ z $玻色子的交互。特别是，通过考虑两个相反的带电瘦素，缺失的能量和两个B标记的喷气机在最终状态下，确定了异常的电气Quark Top-Quark相互作用的潜在限制。该分析是针对LHC的高光度场景进行的，其集成的光度为3 ab $^{ - 1} $的质子 - 质子碰撞，在14 TEV的质量中心能量中。考虑到升级的CMS检测器的逼真的检测器模拟，包括平均每束交叉点的平均200个Proton-Proton相互作用，在异常耦合上计算了$ 95 \％$的置信区间。 We find that the $t\bar{t}ν_{l}\bar{ν_{l}}$ channel can provide stringent bounds on the relevant Wilson coefficients and has the potential to serve as an additional handle beside the $t\bar{t}Z(Z\rightarrow l^{+}l^{-})$ and other channels to search for new physics.
In this paper, we examine the interactions of the top quarks with the $Z$ boson using the top quark pair production associated with neutrino pair ($t\bar{t}ν_{l}\bar{ν_{l}}$) at the LHC. In particular, potential constraints on the anomalous electroweak top-quark interactions are determined by considering two opposite-sign charged leptons, missing energy, and two b-tagged jets in the final state. The analysis is performed for a High Luminosity scenario of the LHC with an integrated luminosity of 3 ab$^{-1}$ of proton-proton collisions at a center-of-mass energy of 14 TeV. The $95\%$ confidence intervals are computed on the anomalous couplings considering a realistic detector simulation of an upgraded CMS detector including an average of 200 proton-proton interactions per bunch crossing. We find that the $t\bar{t}ν_{l}\bar{ν_{l}}$ channel can provide stringent bounds on the relevant Wilson coefficients and has the potential to serve as an additional handle beside the $t\bar{t}Z(Z\rightarrow l^{+}l^{-})$ and other channels to search for new physics.
