Study of $D_{sJ}$ decays to $D^{\ast }K$ in inclusive $e^{+}{e}^{-}$ interactions

Abstract

We observe the decays D^*_{s1}(2710)^+ \to D^*K$and$D^*_{sJ}(2860)^+ \to D^*K$andmeasuretheirbranchingfractionsrelativetothe$D K$finalstate.Wealsoobserve,inthe$D^*K$massspectrum,anewbroadstructureatamassof$(3044 \pm 8_{stat} (^{+30}_{-5})_{syst})MeV/c^2$havingawidth$Γ=(239 \pm 35_{stat} (^{+46}_{-42})_{syst})MeV$.Toobtainthisresultweuse470${\rm fb}^{-1}$ofdatarecordedbytheBaBardetectoratthePEPIIasymmetric-energy$e^+e^-$ storage rings at the Stanford Linear Accelerator Center running at center-of-mass energies near 10.6 GeV.

15 pages, 9 postscript figures, submitted to Phys. Rev. D

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• $D_{sJ}(2860)$ and $D_{sJ}(2715)$
• Canonical Interpretation of the D_{sJ}(2860) and D_{sJ}(2690)
• $D_{sJ}(2860)$ resonance and the $s_{\ell }^P={\frac{5}{2}}^{-}$ $c\bar{s}$ ($c\bar{q}$) doublet
• D_{sJ}(2860) as the first radial excitation of the D_{s0}^*(2317)
• New Heavy-Light Mesons $Q\bar{q}$
• Identifying $D_{sJ}(2700)$ through its decay modes
• Radial Excitations of Heavy Mesons

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