$D {sJ}(2860)$ resonance and the $s ell^P={5over 2}^-$ $c ar s$ ($c ar q$) doubletReport as inadecuate



 $D {sJ}(2860)$ resonance and the $s ell^P={5over 2}^-$ $c ar s$ ($c ar q$) doublet


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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.


Author: P. Colangelo; F. De Fazio; S. Nicotri

Source: https://archive.org/







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