i) Strukturfunktionen, Formfaktoren und Generalized Parton Distributions ii) Chirale Fermionen

i) 结构函数、形状因子和广义部分子分布 ii) 手性费米子

• 批准号: 5361293
• 负责人: Professor Dr. Andreas Schäfer
• 金额: --
• 依托单位: Institut für Theoretische Physik
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2002
• 资助国家: 德国
• 起止时间: 2001-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5361293?language=en
• 关键词: Strukturfunktionen; Formfaktoren; und; Generalized; Parton

1) Structure functions and form factors:The QCDSF colaboration has long standing experience in the calculation of moments of structure functions and form factors. We plan to use the newly generated dynamical configurations to recalculate these, taking also disconnected graphs into account. We also want to extend these studies to moments of Skewed Parton Distributions.2) Chirally improved and perfect action:Chirally symmetric lattice formulations became possible some years ago. We already used a particular chirally improved action to study e.g. the properties of instantions and calorons. We plan to extend these studies to a perfect action and overlap fermions and to calculate a number of observables for all three actions.

1）结构函数和形状因子：QCDSF合作在计算结构函数和形状因子的矩方面拥有长期的经验。我们计划使用新生成的动态配置来重新计算这些配置，同时也考虑到断开的图。我们还希望将这些研究扩展到偏斜帕顿分布的矩。2）手性改进和完美作用：手性对称晶格公式在几年前就成为可能。我们已经使用了一种特殊的手性改进行为来研究，例如实例和卡路里的属性。我们计划将这些研究扩展到完美动作和重叠费米子，并计算所有三个动作的可观测值的数量。