论文标题
单次生产的非谐音图
Non-resonant Diagrams for Single Production of Top and Bottom Partners
论文作者
论文摘要
在ATLA和CMS实验中，寻找顶部和底部合作伙伴是分析的主要重点。当单独生产时，标准模型第三代夸克的这些类似向量的伙伴保留了相当大的横截面，使它们在各自的拓扑中具有吸引力。尽管大多数努力都集中在这些假设颗粒的单一产生的共振模式上，但狭窄宽度的最主要模式，最近的研究揭示了涉及非谐波图的广泛而丰富的现象学。在这封信中，我们明确地研究了非共鸣图对不同顶部和底部合作伙伴单个生产拓扑的影响及其对包容性横截面估计的影响。我们还提出了一个参数化，用于计算当包含此类图时，将校正因子计算为单个矢量样夸克产量横截面。
The search for Top and Bottom Partners is a major focus of analyses at both the ATLAS and CMS experiments. When singly produced, these vector-like partners of the Standard Model third generation quarks retain a sizeable cross-section that makes them attractive search candidates in their respective topologies. While most efforts have concentrated on the resonant mode for single production of these hypothetical particles, the most dominant mode at narrow widths, recent studies have revealed a wide and rich phenomenology involving the non-resonant diagrams. In this letter we categorically investigate the impact of the non-resonant diagrams on different Top and Bottom partner single production topologies and their impact on the inclusive cross-section estimation. We also propose a parameterization for calculating the the correction factor to the single vector-like quark production cross-section when such diagrams are included.
