Multiparton evolution equations in QCD

QCD 中的多子演化方程

• 批准号: 52793812
• 负责人: Professor Dr. Vladimir Braun
• 金额: --
• 依托单位: Institut für Theoretische Physik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/52793812?language=en
• 关键词: Multiparton; evolution; equations; QCD

In the first part of this project we have developed a novel alrebraic approach to the study of the scale dependence of higher-twist parton distributions in QCD. It is based on maximal use of the conformal symmetry and allows one to bypass calculation of Feynman diagrams. The complete set of renormalization group kernels is constructed for twist-four operators, which serve as "building blocks" in the evolution equations. The proposed continuation is concentrated on applications of this technique to several problems that are relevant for phenomenology: e.g. single-spin asymmetries, higher-twist and heavy-quark contributions to the total cross section of deep inelastic scattering (DIS), and target mass corrections in exclusive reactions, in particular those involving generalized parton distributions.

在本项目的第一部分中，我们发展了一种新的量子力学方法来研究QCD中高扭曲部分子分布的尺度依赖性。它是基于最大限度地利用共形对称性，并允许一个绕过费曼图的计算。完整的重正化群核的twist-four运营商，作为“积木”的发展方程。建议的延续集中在应用这种技术的几个问题，是相关的现象学：例如单自旋不对称性，高扭曲和重夸克贡献的总截面深非弹性散射（DIS），和目标质量修正排他性的反应，特别是那些涉及广义部分子分布。

项目成果

Integrability of the evolution equations for heavy–light baryon distribution amplitudes

重轻重子分布振幅演化方程的可积性

• DOI: 10.1016/j.physletb.2014.09.062
• 发表时间: 2014
• 期刊: Physics Letters B
• 影响因子: 4.4
• 作者: V. M. Braun;S. E. Derkachov;A. N. Manashov
• 通讯作者: A. N. Manashov