Particle and Quantum Field Theory Investigations

9318781 Sirlin提议的研究包括粒子物理和量子场论的各种主题。这些包括：(1)对电弱物理的研究，以(a)在量子修正的水平上验证标准模型；(b)约束顶夸克和希格斯玻色子的质量；(c)寻找可能表明存在新物理学的偏差；(2)研究晶格规范理论的临界极限和量子色动力学中的非微扰效应，包括利用最近发展的计算方案，其中晶格Faddeev-Popov公式被修改为考虑Gribov视界，同时保持微扰重整性；(3)通过超对称和时空二象性确定有效低能弦拉格朗日量的约束；(b)研究非平凡背景下精确可解开弦的例子，以及它们与低能物理的相关性；(c)找到弦理论中存在的高自旋质量态的有效拉格朗日量。＊＊＊

9318781 Sirlin The proposed research includes a variety of topics in particle physics and quantum field theory. These include: (1) studies of electroweak physics to (a) verify the Standard Model at the level of its quantum corrections; (b) constrain the masses of the top quark and the Higgs boson; (c) search for deviations that may signal the presence of new physics; (2) work on the critical limit of lattice gauge theory and non-perturbative effects in quantum chromodynamics, including exploiting the calculational scheme developed recently whereby the lattice Faddeev-Popov formula is modified to take into account the Gribov horizon, while nevertheless maintaining perturbative renormalizability; (3) work to (a) determine the constraints imposed on the effective low-energy string lagrangians by supersymmetry and space-time duality; (b) study examples of exactly solvable open strings in nontrival backgrounds, and their relevance to low-energy physics; (c) find the effective lagrangians for the higher-spin massive states present in string theory. ***