Elementary Particle Theory and Quantum Field Theory

9421387格林伯格哈格展开(N量子近似)将被用来研究量子色动力学，重点是组分夸克模型与部分子模型的关系，即组分夸克与当前夸克的关系。其目标是从QCD拉格朗日开始，将量子场论方法应用于从强子光谱到深度非弹性散射过程的经验数据。需要研究的具体问题包括手征对称性破缺、禁闭和相对论束缚态的描述。理论研究还将包括：(I)辐射和电弱诱导的对复合模型中费米子质量的精细结构效应，(Ii)超对称性、手征和矢量对称性的动力学破坏，(Iii)汤川统一(在前子模型中被强迫)和理解大tan B(Iv)前子模型中超SY谱的预期质量，(V)前子水平上所有力的统一性问题，(Vi)与膨胀、重生和暗物质有关的宇宙学问题，以及(Vii)超弦理论中前电子谱和规范群的可能来源。***

9421387 Greenberg The Haag expansion (N quantum approximation) will be used to study quantum chromodynamics (QCD), with emphasis on the relation of the constituent quark model to the parton model; i.e., the relation of constituent and current quarks. The goal is to bring quantum field theory methods starting from the QCD Lagrangian to bear on empirical data ranging from hadron spectroscopy to deep inelastic scattering processes. Specfic issues to be investigated include chiral symmetry breaking, confinement, and the description of relativistic bound states. Theoretical investigations will also include studies of (i) radiative and electroweak0induced fine structure effects on the fermion masses in the composite model, (ii) dynamical breaking of supersymmetry, chiral and vectorial symmetries, (iii) Yukawa unification (which is forced in the preon model) and understanding large tan B (iv) expected masses of the SUSY-spectrum in the preon model, (v) the question of the unity of all forces at the preon level, (vi) cosmological issues related to inflation, baryogenesis and dark matter and (vii) a possible origin of the preonic spectrum and gauge group from superstring theories. ***