QCD与HQET中重夸克场在三圈水平上的匹配
高能物理 - 唯象学
2010-10-05 v5
摘要
我们推导了QCD中的重夸克场与HQET中相应场之间高达三圈以及在所有阶大β_0极限下的关系。QED电子场与Bloch-Nordsieck场之间的相应关系在所有阶下都是规范不变的。我们还证明了QED电子场的bar{MS}反常量纲仅在单圈依赖于规范参数。
引用
@article{arxiv.1004.2662,
title = {Matching heavy-quark fields in QCD and HQET at three loops},
author = {A. G. Grozin},
journal= {arXiv preprint arXiv:1004.2662},
year = {2010}
}
备注
9 pages, no figures. v2: discussion of gauge invariance in QED extended, references added; v3: QED gauge invariance completely proved; v4: 1 reference added; v5: several typos in the Appendix fixed