双味无质量QCD中跑动耦合的首次计算
高能物理 - 格点
2008-11-26 v2 高能物理 - 唯象学
摘要
我们报告了在Schrödinger泛函方案中双味QCD跑动耦合的非微扰计算。相应的Λ参数描述了高能下的耦合强度，它与一个低能标度相关，而该低能标度仍有待与一个强子“实验”可观测量联系起来。我们发现，耦合的非微扰演化对于避免在估计Λ参数时产生不可容忍的误差是必不可少的。
关键词
引用
@article{arxiv.hep-lat/0105003,
title = {First results on the running coupling in QCD with two massless flavours},
author = {Achim Bode and Roberto Frezzotti and Bernd Gehrmann and Martin Hasenbusch and Jochen Heitger and Karl Jansen and Stefan Kurth and Juri Rolf and Hubert Simma and Stefan Sint and Rainer Sommer and Peter Weisz and Hartmut Wittig and Ulli Wolff},
journal= {arXiv preprint arXiv:hep-lat/0105003},
year = {2008}
}
备注
14 pages, 5 figures, 3 tables, some changes in the data analysis after discovery and correction of an error in Nucl. Phys. B 525, 387 (1998) by C. Christou et al. (hep-lat/9801007v2, Erratum to appear)