Top-Quark Pair Production Beyond NLO

该奖项资助Andrea Ferroglia教授在纽约市技术学院（CUNY）的研究活动。欧洲核子研究中心大型强子对撞机（LHC）的运行很可能与粒子物理学历史上新篇章的开始相吻合。 LHC的主要目标之一是研究导致电弱对称性破缺的现象，从而寻找希格斯玻色子。 为了从LHC提供的数据中提取最多的信息，重要的是能够获得至少与预期的实验测量一样准确的理论预测。 Ferroglia教授研究的主要目标是为计算次领先阶（NLO）以上的顶夸克对产生做出贡献。特别是，Ferroglia教授计划计算胶子融合和夸克湮灭通道的双回路矩阵元素，并通过应用最近开发的基于软共线有效理论的重定程序，研究在次至次至领先的对数精度下的大对数校正的重定。这些结果将使科学家能够获得一些重要的顶夸克观测值的精确理论预测，这些观测值将在LHC上测量。 拟议的研究计划将在纽约市技术学院（CUNY）进行。这所学院在教育科学和工程领域代表性不足的少数民族方面发挥着主导作用。Ferroglia教授计划通过指导对粒子物理学感兴趣的学生群体来为学院的努力做出贡献。本活动的目标是为学生提供一个非技术性的，但在逻辑上连贯的粒子物理学的现状的看法。学生们将在专门的活动中向整个大学社区展示他们的工作成果。Ferroglia教授的研究活动也将有助于最近成立的理论物理中心的发展。

This award funds the research activities of Professor Andrea Ferroglia at the New York City College of Technology (CUNY). The beginning of operations at the Large Hadron Collider (LHC) at CERN is very likely to coincide with the beginning of a new chapter in the history of particle physics. One of the primary goals of the LHC is to study the phenomena which lead to the breaking of the electroweak symmetry, and therefore to search for the Higgs boson. In order to extract the most information from the data that the LHC will be providing, it is important to be able to obtain theoretical predictions which are at least as accurate as the expected experimental measurements. The main objective of Professor Ferroglia's research is to contribute to the calculation of the top-quark pair production beyond next-to-leading order (NLO). In particular, Professor Ferroglia plans to calculate two-loop matrix elements for the gluon-fusion and quark-annihilation channels, and study the resummation of large logarithmic corrections at next-to-next-to-leading logarithmic accuracy by applying a recently developed resummation procedure based on soft-collinear effective theory. These results will enable scientists to obtain precise theoretical predictions for some important top-quark observables that will be measured at the LHC.This project is also envisioned to have significant broader impacts. The proposed research plan will be carried out at New York City College of Technology (CUNY). This college plays a leading role in the education of minorities underrepresented in the sciences and engineering. Professor Ferroglia plans to contribute to the efforts of the college by mentoring groups of students who have an interest in particle physics. The goal of this activity will be to provide the students with a non-technical but logically coherent view of the current status of particle physics. The students will present the result of their work to the college community at large in dedicated events. Professor Ferroglia's research activities will also contribute to the development of the recently established Center for Theoretical Physics.