Global QCD Analysis and Precision Electroweak Physics in High Energy Collider Phenomenology

高能对撞机现象学中的全局 QCD 分析和精密电弱物理

• 批准号: 2013791
• 负责人: Chien-Peng Yuan
• 金额: $ 33万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2013791&HistoricalAwards=false
• 关键词: Global; QCD; Analysis; Precision; Electroweak

This award funds the research activities of Professor C.-P. Yuan at Michigan State University (MSU).Elementary-particle physics addresses the question of determining the smallest building blocks of matter. Our current understanding is that protons and neutrons, and all other strongly interacting particles, are composed of fundamental particles called partons (quarks and gluons). The strong interactions between the partons are described by the theory of Quantum Chromodynamics (QCD). In his research, Professor Yuan aims to develop theoretical methods to extract information from the QCD theory --- information which is critical for interpreting experimental data around the world, including data from recent experiments at the CERN Large Hadron Collider (LHC). 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 Yuan will involve graduate students and postdocs 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 the results of his research.More technically, Professor Yuan will extract the most updated CTEQ-TEA Parton Distribution Functions (PDFs) from a global analysis of the experimental data. (CTEQ is an acronym for "Coordinated Theoretical Experimental Project of QCD", and TEA for "Tung et al".) Professor Yuan will expand the theoretical capabilities of the analysis to include corrections from higher-order QCD interactions, heavy quark-mass effects, next-to-leading-order quantum electrodynamic (QED) interactions, and transverse momentum resummation. He will also refine the techniques for analyzing the PDF uncertainties and the correlations among the predictions of various physical observables, and investigate the implications of PDFs and their associated uncertainties on the most important physical processes at colliders, particularly at the LHC. Measurements of production rates for W, Z, top quark pairs, single top quarks and Higgs bosons at the LHC --- including both inclusive rates and relevant kinematical distributions --- will provide major new input to the determination of PDFs during the next few years. At the same time, refinements of the PDFs are crucial both for testing the Standard Model in greater precision and for probing New Physics effects at high-energy colliders.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项为C.-P.-P.教授的研究活动提供了资金。密歇根州立大学（MSU）的元。 我们目前的理解是，质子和中子以及所有其他强烈相互作用的颗粒都是由称为parton的基本颗粒（夸克和胶子）组成的。 参与量之间的强烈相互作用由量子染色体动力学理论（QCD）描述。 Yuan教授在他的研究中旨在开发理论方法来从QCD理论中提取信息---信息对于解释世界各地的实验数据至关重要，包括来自CERN大型强子撞机（LHC）最近实验的数据。 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。 Yuan教授将参与研究生和博士后的研究，从而为初级物理学家开始在该领域的研究提供了重要的培训。他还打算根据他的研究结果进行公开讲座，并根据他的研究结果开发新课程。从技术上讲，Yuan教授将从对实验数据的全球分析中提取最新更新的CTEQ-TEA PARTON分布功能（PDFS）。 （CTEQ是“协调QCD的理论实验项目”和“ Tung等人”的TEA的首字母缩写。 他还将完善分析PDF不确定性的技术以及各种物理可观察物的预测之间的相关性，并研究PDF及其相关的不确定性对围墙最重要的物理过程的含义，尤其是在LHC上。 W，Z，顶级夸克对的生产率，LHC上的单个顶级夸克和希格斯玻色子的测量 - 包括包含率和相关的运动学分布 - 将为未来几年确定PDF的主要新输入。 同时，PDF的改进对于更精确地测试标准模型至关重要，并在高能量居民中探索新的物理效应。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的审查标准来通过评估来通过评估来支持的。

项目成果

Determining the helicity structure of the nucleon at the Electron Ion Collider in China

• DOI: 10.1007/jhep08(2021)034
• 发表时间: 2021-03
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: D. Anderle;T. Hou;H. Xing;Mengshi Yan;C. Yuan;Yuxiang Zhao

Parton distributions and lattice-QCD calculations: Toward 3D structure

• DOI: 10.1016/j.ppnp.2021.103908
• 发表时间: 2021-09-22
• 期刊: PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
• 影响因子: 9.6
• 作者: Constantinou, Martha;Courtoy, Aurore;Zhang, Rui
• 通讯作者: Zhang, Rui

Discriminating between Higgs Production Mechanisms via Jet Charge at the LHC

通过大型强子对撞机中的喷射电荷区分希格斯粒子产生机制

• DOI: 10.1103/physrevlett.131.041802
• 发表时间: 2023
• 期刊: Physical Review Letters
• 影响因子: 8.6
• 作者: Li, Hai Tao;Yan, Bin;Yuan, C.-P.
• 通讯作者: Yuan, C.-P.

Quantifying the interplay of experimental constraints in analyses of parton distributions

• DOI: 10.1103/physrevd.108.034029
• 发表时间: 2023-06
• 期刊: Physical Review D
• 影响因子: 5
• 作者: X. Jing;A. Cooper-Sarkar;A. Courtoy;T. Cridge;F. Giuli;L. Harland–Lang;T. Hobbs;J. Huston;P. Nadolsky;R. Thorne;K. Xie;C. Yuan

The anomalous Zbb¯ couplings at the HERA and EIC

HERA 和 EIC 处的异常 Zbb 耦合

• DOI: 10.1016/j.physletb.2021.136697
• 发表时间: 2021
• 期刊: Physics Letters B
• 影响因子: 4.4
• 作者: Yan, Bin;Yu, Zhite;Yuan, C.-P.
• 通讯作者: Yuan, C.-P.