Chiral effective Lagrangian for heavy-light mesons from QCD
High Energy Physics - Phenomenology
2020-09-02 v3 Nuclear Theory
Abstract
We derive the chiral effective Lagrangian for heavy-light mesons in the heavy quark limit from QCD under proper approximations. The low energy constants in the effective Lagrangian are expressed in terms of the light quark self-energy. With typical forms of the running coupling constant of QCD and the quark self-energy obtained from Dyson-Schwinger equations as well as lattice QCD, we estimate the low energy constants in the model and the strong decay widths. A comparison with data and some discussions of the numerical results are presented.
Cite
@article{arxiv.2001.06418,
title = {Chiral effective Lagrangian for heavy-light mesons from QCD},
author = {Qing-Sen Chen and Hui-Feng Fu and Yong-Liang Ma and Qing Wang},
journal= {arXiv preprint arXiv:2001.06418},
year = {2020}
}
Comments
Published version