Elementary Particle Theory

这个奖资助教授们的研究活动。康奈尔大学的Csaba Csaki， Yuval Grossman, Toichiro Kinoshita, Peter Lepage， Liam McAllister和Maxim Perelstein。研究人员建议在高能理论的各个领域中研究一些最重要和最激动人心的主题，包括标准模型中的粒子物理学、对撞机物理学、弦理论和宇宙学。标准模型（SM）的研究包括风味和中微子物理、晶格量子色动力学（QCD）和精确量子电动力学（QED）。除了标准模型之外，还提出了对各种TeV尺度模型的探索，以及对测试它们所需的新对撞机物理技术的研究。还提出了对暗物质物理方面的研究。在弦理论中，主要的焦点是理解弦紧化中产生的有效理论，并探索弦理论对宇宙学的影响。智力优势：康奈尔粒子理论小组在现代粒子理论的几乎每一个主要领域都进行着最先进的研究。该小组研究计划的统一主题是对当前和未来实验相关的理论问题的独特关注，包括大型强子对撞机（LHC），强度前沿计划，暗物质搜索和宇宙微波背景实验。拟议的研究旨在最大限度地发挥这些实验的科学影响。粒子物理学最近最重要的发展是历史性地发现了希格斯玻色子（类希格斯玻色子），这是2010-2012年大型强子对撞机运行产生的大量数据的一部分。Csaki教授、Grossman教授和Perelstein教授将在接下来的五年里把他们的注意力集中在与当前和未来的对撞机相关的物理学上。Csaki将探索在LHC数据的基础上仍然可行的非常规超对称模型；其他希格斯模型，包括类希格斯膨胀和复合希格斯；以及其他与大型强子对撞机结果一致的tev尺度模型。格罗斯曼将在近期和更遥远的未来探索与强度前沿计划相关的物理学。这包括魅力和美丽物理，电荷宇称（CP）违反，以及中微子物理的研究。佩雷尔斯坦的研究计划包括利用125 GeV玻色子提供的tev尺度物理学的新窗口来收集关于标准模型之外可能的物理学的新信息；理解大型强子对撞机直接搜索新物理学的含义，特别是关注自然性问题；并在理论和实验发展的推动下提出新的大型强子对撞机搜索。与此同时，Perelstein建议继续为暗物质搜索的理论解释做出贡献，在那里已经报道了一些有趣的探测线索，并且很快就会有更多的数据可用。Lepage教授作为“高精度QCD”（HPQCD）点阵规范理论合作项目的主要成员，将继续从点阵规范理论中追求重夸克物理的高精度结果，获得粲物理的半光子d介子形式因子；将b-夸克结果扩展到与粲数观测值相同的精度（约1%）；高精度地确定了夸克质量和强耦合常数。木下教授在过去的十年里一直致力于系统地评估五环QED对电子异常磁矩（g-2）的贡献。在接下来的几年里，他建议改进他的小组的分析结果的数值评价。麦卡利斯特教授计划研究早期宇宙的物理学，利用对紫外线敏感量的宇宙学观测来阐明量子引力理论。McAllister的主要重点将是理解弦理论紧化中的暴胀动力学，但他也建议研究非超对称弦紧化的真空结构。更广泛的影响：康奈尔粒子理论小组高度重视研究生和博士后的培养，以及向公众广泛传播最新的研究成果。在过去的三年里，该小组毕业了12名学生，其中大多数现在是博士后，而我们过去十年毕业的学生中有8名现在在美国或国外担任教职。该组织的每个成员都在积极寻求向公众推广的所有可能性。过去已经制作了许多公开演讲，文章，座谈会，高中讲座和教师会议，并将在未来继续由小组成员组织。

This award funds the research activities of Profs. Csaba Csaki, Yuval Grossman, Toichiro Kinoshita, Peter Lepage, Liam McAllister and Maxim Perelstein at Cornell University. The investigators propose to study some of the most important and exciting topics in a variety of fields within high-energy theory, including particle physics in and beyond the Standard Model, collider physics, string theory, and cosmology. Research on the Standard Model (SM) consists of investigations of flavor and neutrino physics, lattice quantum chromodynamics (QCD), and precision quantum electrodynamics (QED). Beyond the Standard Model, explorations of diverse models of the TeV scale are proposed, together with studies of the new collider physics techniques necessary for testing them. Investigations of aspects of dark matter physics are also proposed. Within string theory the primary focus is on understanding the effective theories arising in string compactifications, and exploring the implications of string theory for cosmology. Intellectual merit: The Cornell particle theory group carries out state-of-the-art research in nearly every major area of modern particle theory. The unifying theme of the group's research program is a distinctive focus on theoretical problems that are relevant for present and future experiments, including the Large Hadron Collider (LHC), the intensity frontier program, dark matter searches, and cosmic microwave background experiments. The proposed research is directed at maximizing the scientific impact of these experiments. The most important recent development in particle physics is the historic discovery of the Higgs(-like) boson, as part of the wealth of data produced by the 2010-2012 runs of the LHC. Professors Csaki, Grossman and Perelstein will focus their attention over the next five years on physics related to current and future colliders. Csaki will explore unconventional supersymmetric models that are still viable in light of the LHC data; alternative Higgs models, including a Higgslike dilaton and the composite Higgs; and other TeV-scale models consistent with LHC results. Grossman will explore the physics that is relevant to the intensity frontier program in the near and more distant future. This includes charm and beauty physics, charge-parity (CP) violation, and the study of neutrino physics. Perelstein's research plans include using the new window on TeV-scale physics provided by the 125 GeV boson to glean new information about possible physics beyond the Standard Model; understanding the implications of the direct LHC searches for new physics, focusing in particular on naturalness issues; and proposing new LHC searches motivated by both theoretical and experimental developments. In parallel, Perelstein proposes to continue to contribute to theoretical interpretations of dark matter searches, where several interesting hints of detection have already been reported, and much more data will soon become available. Professor Lepage, as a leading member of the "High Precision QCD" (HPQCD) lattice gauge theory collaboration, will continue the pursuit of high-precision results for heavy quark physics from lattice gauge theory, obtaining semileptonic D-meson form factors for charm physics; extending b-quark results to the same precision (of order 1%) as the charm observables; and determining the quark masses and the strong coupling constant to high precision. Professor Kinoshita has devoted the past decade to a systematic evaluation of the five-loop QED contribution to the anomalous magnetic moment (g-2) of the electron. In the next few years, he proposes to improve the numerical evaluation of his group's analytic results. Professor McAllister plans to investigate the physics of the very early universe, using cosmological observations of ultraviolet-sensitive quantities to shed light on theories of quantum gravity. McAllister's primary focus will be understanding inflationary dynamics in compactifications of string theory, but he also proposes to study the vacuum structure of non-supersymmetric string compactifications. Broader impact: The Cornell particle theory group puts a high priority on the training of graduate students and postdocs, as well as on the wide dissemination of recent research results to the general public. Over the past three years, the group graduated twelve students, a majority of whom are now postdocs, while eight of our former students who graduated over the past decade now have faculty positions in the U.S. or abroad. Every member of the group is vigorously pursuing all possibilities for outreach to the general public. Numerous public talks, articles, colloquia, high school lectures and teacher conferences have been produced in the past, and will continue to be organized in the future by the group members.