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We study the spectrum and isospin-violating strong decays of charmed mesons with strangeness. The scalar and the axial-vector states are generated by coupled-channel dynamics based on the leading order chiral Lagrangian. The effect of chiral corrections is investigated. We show that taking into account large- relations implies a measurable signal for an exotic axial-vector state in the ηD∗ invariant mass distribution. The hadronic decay widths of the scalar and the axial-vector are predicted to be 140 keV. 相似文献
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P. VingerhoetsK.T. Flanagan J. BillowesM.L. Bissell K. BlaumB. Cheal M. De RydtD.H. Forest Ch. GeppertM. Honma M. KowalskaJ. Krämer K. KreimA. Krieger R. NeugartG. Neyens W. Nörtershäuser J. PapugaT.J. Procter M.M. RajabaliR. Sánchez H.H. StrokeD.T. Yordanov 《Physics letters. [Part B]》2011,703(1):34-39