Heavy Mesons in Two Dimensions
高能物理 - 唯象学
2010-11-01 v1
摘要
The large mass limit of QCD uncovers symmetries that are not present in the QCD lagrangian. These symmetries have been applied to physical (finite mass) systems, such as B and D mesons. We explore the validity of this approximation in the 't Hooft model (two-dimensional QCD in the large-N approximation). We find that the large mass approximation is good, even at the charm mass, for form factors, but it breaks down for the pseudoscalar decay constant.
引用
@article{arxiv.hep-ph/9204206,
title = {Heavy Mesons in Two Dimensions},
author = {Benjamin Grinstein and Paul F. Mende},
journal= {arXiv preprint arXiv:hep-ph/9204206},
year = {2010}
}
备注
4 pages, 3 figures incl