Decays of $D_{sj}^*(2317)$ and $D_{sj}(2460)$ Mesons in the Quark Model

Details Decays of $D_{sj}^*(2317)$ and $D_{sj}(2460)$ Mesons in the Quark Model Decays of $D_{sj}^*(2317)$ and $D_{sj}(2460)$ Mesons in the Quark Model

2006-04-11

arxiv.org/abs/hep-ph/0604090v2

High Energy Phys.Nucl.Phys.30:1041-1047,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

We study the decay widths of the narrow resonances $D_{sj}^*(2317)$ and $D_{sj}(2460)$ in the chiral quark model, together with the well-known $D^\ast$ and $D_s^*$ mesons. All the parameters in our calculation are taken from Godfrey and Isgur's quark model except the $\pi^0-\eta$ mixing angle which is fixed by the $D_s^*$ decay widths. The calculated electromagnetic decay widths agree with those from other groups and the experimental data available quite well. However, the pionic decay widths of $D_{sj}(2317)$ and $D_{sj}(2460)$ are too small to fit the experimental data. We suspect that the simple chiral quark pion axial-vector interaction Hamiltonian is not suitable for hadron strong decays of $D_{sj}(2317)$ and $D_{sj}(2460)$.

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