Research in Elementary Particle Theory (Physics)

基本粒子论研究（物理学）

• 批准号: 8620118
• 负责人: Richard Robinett
• 金额: $ 4.76万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-06-01 至 1990-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8620118&HistoricalAwards=false
• 关键词: Research; Elementary; Particle; Theory; Physics

Research in a variety of phenomenological and theoretical topics in elementary particle physics will be carried out. Two projects involving heavy quarkonium decays are planned. First, motivated by the large QCD one-loop corrections to the decay into a Higgs boson, it is planned to calculate the one-loop corrections due to Higgs bosons to this process in two-Higgs doublet models (as required, for example, in all supersymmetric theories). Secondly, it is proposed that heavy quarkonium decays into Z and ZH final states be reexamined for all S- and P-states. It is also planned that the study of W and Z pair- production in high-energy e e collisions in the context of a strongly-interacting electroweak sector be udertaken. Limits on the masses and couplings of leptoquark bosons derivable from ultrahigh-energy cosmic ray neutrino interactions will be investigated as will the phenomenology of superstring-motivated models derived from E . On the more theoretical side, building on previous studies (of this author and collaborators), continued work on the effects of a finite-temperature heat bath on the stability of spacetime is planned. Finally, two projects involving properties of theories with unbroken supersymmetry are also proposed. One is the investigation of sum rules in supersymmetric quantum mechanics and their relation to special function theory in mathematics. The other will involve one-loop calculations of various cross-sections to test for the existence of amplitude zeros beyond tree level in supersymmetric theories. This work, by a very highly-regarded young theoretical physicist, will add to our understanding of the physics of certain elementary particles that, while so-far undiscovered, are widely believed to exist, and are central to our picture of the basic forces of nature.

研究各种现象学和理论 将开展基本粒子物理学的专题。 两 涉及重夸克偶素衰变的项目正在规划中。 第一、 由大QCD单圈修正的衰变到 希格斯玻色子，计划计算一圈 由于希格斯玻色子对双希格斯玻色子中这一过程的修正 双峰模型（如所需，例如，在所有超对称模型中， 理论）。 其次，提出了重夸克偶素衰变 成Z 和ZH最终状态重新检查所有S-和 P州 还计划研究W和Z对- a背景下高能e e碰撞的产生 强相互作用的电弱扇区。 限制 轻夸克玻色子的质量和耦合可以从 超高能宇宙射线中微子相互作用将是 研究超弦驱动的现象学 模型由E . 从理论上讲， 关于以前的研究（作者和合作者），继续 研究有限温度热浴对 时空的稳定性。 最后，两个项目 涉及具有未破缺超对称性的理论的性质， 并提出了 一个是对和规则的研究 超对称量子力学及其与空间关系 数学中的函数论 另一个将涉及一个循环 各种横截面的计算，以测试是否存在 在超对称理论中，振幅零点超过树的水平。 这项工作，由一个非常受人尊敬的年轻理论家， 物理学家，将增加我们对物理学的理解， 某些基本粒子，虽然迄今尚未发现， 被广泛认为是存在的，并且是我们对 自然的基本力量。