三圈精度下 QCD 与 HQET 重轻流形的匹配
高能物理 - 唯象学
2010-04-30 v3
摘要
我们考虑量子色动力学中由重夸克和轻夸克形成的流形,并计算其与重夸克有效理论在三圈精度下的匹配。作为应用,我们获得了 B 介子衰变常数比值的三阶微扰修正。
引用
@article{arxiv.0911.3356,
title = {Matching QCD and HQET heavy-light currents at three loops},
author = {S. Bekavac and A. G. Grozin and P. Marquard and J. H. Piclum and D. Seidel and M. Steinhauser},
journal= {arXiv preprint arXiv:0911.3356},
year = {2010}
}
备注
23 pages, full results are available as Mathematica files at http://www-ttp.particle.uni-karlsruhe.de/Progdata/ttp09/ttp09-41/ ; v2: an error in comparison with Ref. [8] fixed ; v3: Journal version