Perturbative QCD Study for Jet and Heavy Flavor Production

喷射和浓香精生产的微扰 QCD 研究

基本信息

批准号：
1720486
负责人：
Zhongbo Kang
金额：
$ 18万
依托单位：
University of California-Los Angeles
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-08-01 至 2020-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1720486&HistoricalAwards=false
关键词：
Perturbative QCD Study Jet Heavy

项目摘要

This award funds the research activities of Professor Zhongbo Kang at the University of California, Los Angeles.After nearly twenty years of planning and construction, the Large Hadron Collider (LHC) is now the highest-energy particle collider in the world. By colliding elementary particles against each other at high energies, physicists expect to learn about the fundamental building blocks of matter and their interactions at higher energies and smaller distances than have ever been previously explored. Collimated jets of hadrons are a dominant feature of high-energy particle interactions, and are copiously produced at the LHC. The research of Professor Kang is focused on understanding the production of these strongly interacting particles, from which important information can be extracted. Jets constitute unique opportunities to explore the dynamics of the strong interaction and to study the fundamental properties of the underlying theory, Quantum Chromodynamics (QCD). As a result, research in this area advances the national interest by promoting the progress of science in one of its most fundamental directions: the discovery and understanding of new physical law. This project is also envisioned to have significant broader impacts. Professor Kang will involve graduate students in his research, and thereby provide critical training for junior physicists beginning research in this field. He also intends to give public lectures on his research results, and develop new course curricula based on results from the LHC.More technically, Professor Kang will develop theoretical tools to perform accurate QCD phenomenology at the LHC, especially for inclusive and heavy flavor tagged jets and their substructure. He will also perform studies for heavy quarkonium production by making use of a novel fragmentation function approach within QCD factorization. In addition, he will combine the frameworks of heavy quarkonium physics and jet substructure in order to achieve a better understanding of the production and polarization of heavy quarkonium at the LHC, which is currently one of the most intriguing puzzles in the field.

该奖项为加利福尼亚大学洛杉矶分校的方康教授的研究活动提供资金。在计划和建设近20年后，大型强子对撞机（LHC）现在是世界上最高的能量粒子对撞机。通过在高能量的情况下相互碰撞基本粒子，物理学家希望与以前探索的物质的基本构建块及其相互作用有关的基本构建块及其相互作用。 HADRON的准确喷射是高能粒子相互作用的主要特征，在LHC上大量生产。 Kang教授的研究重点是了解这些强烈相互作用的粒子的产生，从中可以从中提取重要信息。喷气机构成了探索强相互作用动态的独特机会，并研究基本理论量子染色体动力学（QCD）的基本特性。结果，该领域的研究通过以最基本的方向之一来促进科学的进步来提高国家利益：对新物理法的发现和理解。还设想该项目具有更广泛的影响。 Kang教授将与研究生参与研究，从而为初级物理学家提供重要的培训。他还打算为他的研究结果提供公开讲座，并根据LHC的结果开发新课程。从技术上讲，Kang教授将开发理论工具以在LHC上在LHC上执行准确的QCD现象学，尤其是用于包容性和重型风味的Jets及其子结构。他还将通过在QCD分解中利用一种新型的碎片化功能方法来进行大量夸克产生的研究。此外，他还将结合重夸金物理和喷气子结构的框架，以便更好地了解LHC的重Quarkonium的生产和极化，LHC目前是该领域最吸引人的难题之一。