Understanding $D_{sJ}(2317)$

Abstract

We analyze the hadronic and radiative decay modes of the recently observed $D_{sJ}(2317)$ meson, in the hypothesis that it can be identifield with the scalar $s_{\ell }^P={\frac{1}{2}}^{+}$ state of $c\bar{s}$ spectrum ($D_{s0}$). The method is based on heavy quark symmetries and Vector Meson Dominance ansatz. We find that the hadronic isospin violating mode $D_{s0}\to D_s{\pi }^0$ is enhanced with respect to the radiative mode $D_{s0}\to D_s^{\ast }\gamma$. The estimated width of the meson is $\Gamma (D_{s0})\simeq 7$ KeV.

LaTex, 10 pages

References in corpus (6)

• Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2
• Chiral Multiplets of Heavy-Light Mesons
• Implications of a DK Molecule at 2.32 GeV
• Observed D_s(2317) and tentative D(2100-2300) as the charmed cousins of the light scalar nonet
• Testing the Nature of the D_{sJ}^*(2317)^+ and D_{sJ}(2463)^+ States Using Radiative Transitions
• Spin-Orbit and Tensor Forces in Heavy-quark Light-quark Mesons: Implications of the New Ds state at 2.32 GeV

Cited by in corpus (106)

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• Charmonium Options for the X(3872)
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• Hidden gauge formalism for the radiative decays of axial-vector mesons
• Chiral Lagrangian with Heavy Quark-Diquark Symmetry
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• Measurements of the $D_{sJ}$ resonance properties
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• Charmed-strange mesons revisited: mass spectra and strong decays
• Excited Charmed Mesons: Observations, Analyses and Puzzles
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• Chiral loop corrections to strong decays of positive and negative parity charmed mesons
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• Exotic Doubly Charmed Ds0*(2317)D and Ds1*(2460)D* Molecules
• Structure of the axial-vector meson $D_{s1}(2460)$ and the strong coupling constant $g_{D_{s1}{D}^{\ast }K}$ with the light-cone QCD sum rules
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• From the Kappa via the Ds0*(2317) to the chi_c0: connecting light and heavy scalar mesons
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• Measurement of the absolute branching fraction of $D_{s0}^{\ast \pm }(2317)\to {\pi }^0{D}_s^{\pm }$
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