D_(sJ)(2860) resonance and the s_ell^P={5over 2}^- c bar s (c bar q) doublet
classification
✦ hep-ph
keywords
mesonanalyzearguingargumentsassignmentsconsiderdiscovereddoublet
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We analyze the recently discovered $D_{sJ}(2860)$ meson using arguments based on the heavy quark expansion together with the experimental observations. We consider the possible quantum number assignments, arguing that the interpretation of the meson as the $J^P=3^-$ $c \bar s$ state is favoured.
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