1st COFI Workshop on Precision Electroweak

第一届 COFI 精密弱电研讨会

• 批准号: 1928439
• 负责人: Mayda Velasco
• 金额: $ 2.99万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-07-01 至 2020-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1928439&HistoricalAwards=false
• 关键词: 1st; COFI; Workshop; Precision; Electroweak

Particle physics is focused on understanding the most basic building blocks of the Universe and the rules that bind them. The CERN Large Hadron Collider (LHC), located near Geneva, Switzerland is the world's most powerful particle accelerator, able to reach the highest particle energies in a laboratory setting, and a platform for precision studies of the Electroweak interaction. The Standard Model of particle physics can be challenged using precise measurements of electroweak probes based on the large LHC data samples. This requires a higher level of accuracy and confidence on the inputs used in the analyses and in the interpretation of the results in addition to more advanced analysis techniques. This project provides support for a workshop at the Colegio de Fisica Fundamental e Interdisciplinaria de las Americas (COFI) in San Juan, Puerto Rico that will focus on bringing together particle experimentalists and particle theorists to address the challenges of precision electroweak physics at the Large Hadron Collider (LHC) using the current 13 TeV data sample.Current challenges include reducing uncertainties on the theoretical corrections (both electroweak and Quantum Chromo-dynamics) and the inputs needed to describe proton-proton collisions (parton distribution functions), and subtleties in combining and fitting the electroweak data. These issues must be understood for many of the crucial measurements, like the W and Higgs bosons and top quark masses, the weak mixing angle, di-boson scattering, and rare or forbidden decays of bosons. The workshop will bring relevant experts together to improve our understanding and perform the best possible precision electroweak measurements. A focus will be on the interplay between the various theoretical inputs needed to find deviations, if any, to the expected electroweak observables and the opportunities to exploit measurements to calibrate theoretical predictions. Discussions between theorists and experimentalists in a workshop setting will lead to an improved understanding, which in turn will lead to more precise electroweak measurements, potentially expanding the reach of the LHC during the next run. This project also aims to support the local scientific community in Puerto Rico and establish significant under-represented group participation. Another important goal is to foster the connections between Puerto Rican researchers abroad and the local community. Several postdocs and graduate students residing abroad will be participating in the workshop. COFI is a member of the UNITWIN/UNESCO Chairs Program, which involves 700 institutions in 116 countries to promote cooperation and networking to enhance institutional capacities.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.

粒子物理学的重点是理解宇宙的最基本的构建块和约束它们的规则。位于瑞士日内瓦附近的欧洲核子研究中心大型强子对撞机（LHC）是世界上最强大的粒子加速器，能够在实验室环境中达到最高的粒子能量，也是精确研究电弱相互作用的平台。 粒子物理学的标准模型可以用基于大型强子对撞机数据样本的电弱探针的精确测量来挑战。这就要求除了更先进的分析技术外，在分析和解释结果时所使用的投入要有更高的准确性和可信度。该项目为在圣胡安美洲基础和跨学科财政学院举办的一个讲习班提供支助，波多黎各，将集中力量汇集粒子实验学家和粒子理论家，利用目前13 TeV的数据样本，解决大型强子对撞机（LHC）精密电弱物理学的挑战。目前的挑战包括减少理论校正的不确定性（电弱和量子色动力学）和描述质子-质子碰撞所需的输入（部分子分布函数），以及组合和拟合电弱数据的微妙之处。对于许多关键的测量，如W和希格斯玻色子和顶夸克质量，弱混合角，双玻色子散射，以及玻色子的罕见或禁止衰变，必须理解这些问题。该研讨会将汇集相关专家，以提高我们的理解，并执行尽可能精确的电弱测量。一个重点将是各种理论输入之间的相互作用，需要找到偏差，如果有的话，预期的电弱观测和机会，利用测量校准理论预测。理论家和实验学家在研讨会上的讨论将导致更好的理解，这反过来将导致更精确的电弱测量，可能会在下一次运行中扩大LHC的范围。该项目还旨在支持波多黎各当地的科学界，并建立代表性不足的群体的重要参与。 另一个重要目标是促进海外波多黎各研究人员与当地社区之间的联系。一些居住在国外的博士后和研究生将参加讲习班。该项目涉及116个国家的700个机构，以促进合作和联网，提高机构能力，该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估来支持。