Viable semi-relativistic quark model of heavy-light systems

TL;DR

This paper demonstrates that a semi-relativistic quark potential model, using 1/m_Q expansion, accurately predicts the mass spectra of heavy-light mesons, including challenging D_{sJ} states, outperforming other models.

Contribution

The paper introduces a semi-relativistic quark model that successfully reproduces heavy-light meson spectra, especially D_{sJ} states, using a 1/m_Q expansion approach.

Findings

Accurately predicts D/D_s/B/B_s meson spectra

Successfully reproduces D_{sJ} states not matched by other models

Provides theoretical explanation for model's success

Abstract

The semi-relativistic quark potential model is surprisingly powerful for heavy-light systems if the bound state equation is treated correctly using 1/m_Q expansion with heavy quark mass m_Q. We elucidate the reasons why our semi-relativistic model succeeds in predicting and reproducing all the mass spectra of heavy-light systems so far reported, D/D_s/B/B_s, by reviewing and comparing recent experimental data with the results of our model and others. Especially the mass spectra of the so-called D_{sJ}, i.e., D_{s0}^* and D_{s1}', are successfully reproduced only by our model but not by other models.