Spectra of heavy-light mesons in a relativistic model

摘要: The spectra and wave functions of heavy-light mesons are calculated within a relativistic quark model, which is derived from the instantaneous Bethe-Salpeter equation by applying the Foldy-Wouthuysen transformation on the heavy quark. The kernel we choose is based on scalar confining and vector Coulomb potentials. The Hamiltonian for heavy-light quark-antiquark system is calculated up to order 1/m2Q. The results are in good agreement with available experimental data except for the masses of the anomalous D∗s0(2317) and Ds1(2460) states. The newly observed charmed meson states can be accommodated successfully in the relativistic model and their assignments are presented, the D∗sJ(2860) can be interpreted as the |13/2D1⟩ and |15/2D3⟩ states being the JP=1− and 3− members of the 1D family in our model.