Topics in Theoretical Physics

[306141]谢尔强相互作用理论（QCD）的一个重要预测是胶球的存在——没有夸克的强相互作用粒子。计算了不同类型胶球在高动量传递下的产率。另一个QCD预测涉及重夸克-轻夸克束缚态的衰变；这类系统中所有可能观测到的双体衰变都将被研究。一段时间以来，人们已经知道夸克和轻子是分家族的，而且人们也知道只有三个轻中微子；因此，第四族的中微子一定很重。因此，第四族的带电轻子可能寿命很长，寿命从纳秒到几年不等。我们将详细研究这种长寿命轻子的现象学含义，并研究包含这种轻子的模型的其他含义。最后，高精度的电弱研究需要更好地了解1-9 GeV能量范围内电子-正电子散射的截面，未来CEBAF进行此类测量的可能性将被研究。在代表LBL方面，我比哈里斯更有领导力。如果RHIC的代表性是最重要的，其次是机构代表性，那么长宫将是比哈里斯更有力的选择。莫尼兹更希望有一个比目前更小更聪明的委员会。他觉得最近的委员会中很多人的表现都没有达到人们对NSAC应有的水平。r;7 r4 F(} ~ t F M F F& F t i M M F SQRV F N；F (b) t ^ (t​!!A (Times New Roman Symbol & & Arial " h / terri l. hicks

9306141 Sher An important prediction of the theory of strong interactions (QCD) is the existence of glueballs--strongly interacting particles without quarks. The production rates of various types of glueballs at high momentum transfer will be calculated. Another QCD prediction concerns the decays of heavy quark-light quark bound states; all potentially observable two body decays of such systems will be investigated. It has been known for some time that quarks and leptons come in families, and it is known that there are only three light neutrino's; thus the neutrino of a fourth family must be very heavy. As a result, the charged lepton of the fourth family might be very long-lived, with lifetimes ranging from nanoseconds to years. The phenomenological implications of such long-lived leptons will be studied in detail, and the other implications of models which contain such leptons will be studied. Finally, high precision electroweak studies require better knowledge of the cross-section for electron-positron scattering in the 1-9 GeV energy range, and the possibilities of CEBAF making such a measurement in the future will be investigated. e proven leadership than Harris in terms of representing LBL. If RHIC representation is most important, followed by institutional representation, Nagamiya would be a stronger choice than Harris. Moniz would much prefer a smaller and wiser committee than is presently constituted. He felt that many of the recent committee did not perform to the level that one should expect of NSAC. r; 7 r4 F(} ~ t F M F F& F t i M M F SQRV f N; F u| t ^{ t ! ! A ( Times New Roman Symbol & Arial " h / terri l. hicks terri l. hicks