Electroweak Processes at NLO and NNLO Level

NLO 和 NNLO 级别的弱电过程

• 批准号: SAPIN-2017-00035
• 负责人: Barkanova, Svetlana
• 金额: $ 2.55万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=685491
• 关键词: Electroweak; Processes; NLO; NNLO; Level

Recent evidence coming from neutrino oscillation, dark matter and dark energy shows that the 40-year old Standard Model of Particle Physics incomplete, and that we are at the threshold of a new theory and “New Physics.” One way to look for possible signals of new physics is with high-precision experiments at lower energy which can provide indirect access to physics at multi-TeV scales and play an important complementary role to the Large Hadron Collider research program. This research requires both experimental and theoretical effort, and the new-generation experiments will need a new degree of precision from theory. ****** In this research program, we strive to bring subatomic physics computations to the next level and to provide the most precise and reliable theoretical input for the high-precision experiments by taking advantage of the new semi-automated symbolic computing methods. Our innovative computational models can be used for a wide range of applications, including next-to-leading and next-to-next-to-leading electroweak radiative corrections for lepton-lepton and lepton-hadron scattering, modeling pion electroproduction, and evaluating electric and magnetic dynamical polarizabilities for hadrons. The program will also allow for training a new generation of scientists enabling Canada to maintain its position at the forefront of world-class research for decades to come.***

来自中微子振荡、暗物质和暗能量的最新证据表明，已有 40 年历史的粒子物理学标准模型并不完整，我们正处于新理论和“新物理学”的门槛上。寻找新物理的可能信号的一种方法是在较低能量下进行高精度实验，这可以提供对多TeV尺度物理的间接访问，并对大型强子对撞机研究计划发挥重要的补充作用。这项研究需要实验和理论的努力，新一代的实验将需要更高的理论精度。 ****** 在本研究项目中，我们致力于利用新的半自动符号计算方法，将亚原子物理计算提升到一个新的水平，并为高精度实验提供最精确和可靠的理论输入。我们的创新计算模型可用于广泛的应用，包括轻子-轻子和轻子-强子散射的次领先和次领先电弱辐射校正、模拟π介子电产生以及评估强子的电和磁动态极化率。该计划还将培训新一代科学家，使加拿大能够在未来几十年保持世界级研究的前沿地位。***