Consistency of loop regularization method and divergence structure of QFTs Beyond one-loop order

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	Consistency of loop regularization method and divergence structure of QFTs Beyond one-loop order
	Wu, YL
刊名	EUROPEAN PHYSICAL JOURNAL C
	2013
卷号	73 期号:4 页码:2353
关键词	RENORMALIZATION
ISSN号	1434-6044
通讯作者	Huang, D (reprint author), Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan.
英文摘要	We study the problem how to deal with tensor-type two-loop integrals in the Loop Regularization (LORE) scheme. We use the two-loop photon vacuum polarization in the massless Quantum Electrodynamics (QED) as the example to present the general procedure. In the processes, we find a new divergence structure: the regulated result for each two-loop diagram contains a gauge-violating quadratic harmful divergent term even combined with their corresponding counterterm insertion diagrams. Only when we sum up over all the relevant diagrams do these quadratic harmful divergences cancel, recovering the gauge invariance and locality.
学科主题	Physics
收录类别	SCI
资助信息	National Science Foundation of China (NSFC) [10821504, 10975170]; Chinese Academy of Science
原文出处	http://dx.doi.org/10.1140/epjc/s10052-013-2353-6
语种	英语
WOS记录号	WOS:000318292200002
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15390]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Wu, YL. Consistency of loop regularization method and divergence structure of QFTs Beyond one-loop order[J]. EUROPEAN PHYSICAL JOURNAL C,2013,73(4):2353.
APA	Wu, YL.(2013).Consistency of loop regularization method and divergence structure of QFTs Beyond one-loop order.EUROPEAN PHYSICAL JOURNAL C,73(4),2353.
MLA	Wu, YL."Consistency of loop regularization method and divergence structure of QFTs Beyond one-loop order".EUROPEAN PHYSICAL JOURNAL C 73.4(2013):2353.