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arXiv · 1204.5553

Study on $0^+$ states with open charm in unitarized heavy meson chiral approach

P. Wang·X. G. Wang
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Abstract

We calculate the scattering amplitudes of Goldstone bosons off the pseudoscalar D-mesons in unitarized heavy meson chiral approach. The low energy constants appearing in $\mathcal{O}(p^2)$ chiral Lagrangian are determined by fitting lattice simulations on $S$-wave scattering lengths. $D_{s0}^{*}(2317)$ is obtained as a bound state in $(S,I)=(1,0)$ $DK$ channel. Possible bound states or resonance states in other channels are investigated as well. The quark mass dependence of the mass and binding energy of $D_{s0}^{*}(2317)$ is also investigated, which indicates predominately $DK$ molecular nature.

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P. Wang, X. G. Wang. 2012-07-27. Study on $0^+$ states with open charm in unitarized heavy meson chiral approach. https://doi.org/10.1103/physrevd.86.014030

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