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arXiv · 2001.06418

Chiral effective Lagrangian for heavy-light mesons from QCD

Qing-Sen Chen·Hui-Feng Fu·Yong-Liang Ma·Qing Wang
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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.

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Qing-Sen Chen, Hui-Feng Fu, Yong-Liang Ma, Qing Wang. 2020-01-17. Chiral effective Lagrangian for heavy-light mesons from QCD. https://doi.org/10.1103/physrevd.102.034034

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