arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0812.3783hep-phhep-ex
收藏

分裂的部分极点矩阵元

Partonic Pole Matrix Elements for Fragmentation

S. Meissner, A. Metz

摘要:

对共线三部分子关联函数的碎裂进行了模型无关分析。通过调查他们的支持性质,它示出,特别是所谓的部分子极矩阵元素消失。这揭示了新的光在各种硬半包容反应的横向单自旋不对称性的理解。此外,它提供了额外的强有力的证据的普遍性的横向动量依赖的碎裂功能。

英文摘要:

A model-independent analysis of collinear three-parton correlation functions for fragmentation is performed. By investigating their support properties it is shown, in particular, that the so-called partonic pole matrix elements vanish. This sheds new light on the understanding of transverse single spin asymmetries in various hard semi-inclusive reactions. Moreover, it gives additional strong evidence for the universality of transverse-momentum-dependent fragmentation functions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑