RUI: Discovering New Sources of CP Violation in Flavor Phenomenology

RUI：发现风味现象学中 CP 破坏的新来源

• 批准号: 2310627
• 负责人: Bhubanjyoti Bhattacharya
• 金额: $ 15万
• 依托单位: Lawrence Technological University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-08-15 至 2026-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2310627&HistoricalAwards=false
• 关键词: RUI; Discovering; New; Sources; CP

This RUI award funds the research activities of Professor Bhubanjyoti Bhattacharya at Lawrence Technological University.Although highly successful, the Standard Model (SM) of Particle Physics has several limitations. One such limitation is its inability to resolve our universe's matter-antimatter asymmetry puzzle. The amount of matter in the universe --- surprisingly and unexpectedly –-- far exceeds the amount of antimatter. A fundamental symmetry called Charge-Parity (CP) relates matter with antimatter. As a result, any new physics beyond the SM (so-called "BSM" physics) must therefore have a large amount of CP violation in order to help solve this puzzle. Professor Bhattacharya's scientific research will provide further insight into our understanding of CP violation in BSM theories involving new hypothetical particles. Research in this area advances the national interest by promoting the progress of science in understanding the fundamental properties of nature through the creation of new theoretical frameworks. This project is also envisioned to have significant broader impacts. Undergraduate students at Lawrence Tech, working under the supervision of Professor Bhattacharya, will employ model-independent techniques to compare data with theory, identify deviations in experimental measurements from the SM, and create novel solutions in the form of new-physics models that alleviate tensions within the data. Professor Bhattacharya's students will thus become familiar with cutting-edge computational techniques and contribute to the future American workforce.More technically, Professor Bhattacharya will investigate the decay distributions of heavy mesons (such as B and D mesons) as functions of multiple kinematic variables, using several theoretical tools. He will employ flavor-SU(3) symmetry to investigate hadronic decays and effective-field theory approaches to explore semi-leptonic decays. His research will examine these decays in light of new-physics models with hypothetical particles such as vectorlike fermions, leptoquarks, axionlike particles, and higgslike particles. These projects will create opportunities for delivering a scientific research-based education to undergraduate students while generating increased interest in and greater understanding of particle physics research among the general public.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 RUI 奖项资助劳伦斯理工大学 Bhubanjyoti Bhattacharya 教授的研究活动。尽管粒子物理学的标准模型 (SM) 非常成功，但它也有一些局限性，其中一个局限性是它无法解决我们宇宙的物质-反物质不对称性难题。宇宙中物质的数量——令人惊讶且出乎意料——远远超过了反物质的数量，一种称为电荷宇称（CP）的基本对称性将物质与反物质联系起来。因此，任何超越 SM 的新物理学（所谓的“BSM”物理学）都必须存在大量的 CP 破坏，以帮助解决这个难题。Bhattacharya 教授的科学研究将为我们对 BSM 理论中涉及的 CP 破坏的理解提供进一步的见解。新的假设粒子。该领域的研究通过创建新的理论框架来促进理解自然基本特性的科学进步，从而促进国家利益。在监督下工作Bhattacharya 教授的学生将采用独立于模型的技术来比较数据与理论，识别 SM 实验测量的偏差，并以新物理模型的形式创建新颖的解决方案，从而缓解数据中的紧张局势。熟悉尖端计算技术，为未来的美国劳动力做出贡献。从技术上讲，Bhattacharya 教授将研究重介子（例如 B 和 D 介子）的衰变分布作为多个运动学变量的函数，使用他将利用风味-SU(3) 对称性来研究强子衰变，并利用有效场理论方法来探索半轻子衰变。他的研究将根据带有假设粒子（例如矢量）的新物理模型来检验这些衰变。这些项目将为本科生提供基于科学研究的教育，同时提高学生对粒子物理研究的兴趣和理解。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。