Abstract

We use the QCD sum rules to analize the masses and partial hadronic decays widths of the mesons D s J + ( 2317 ) and X ( 3872 ) , in the hypotesis that these mesons can be identified as four-quark states. We use a diquak-antidiquark current and work to the order of m s in full QCD. Our results indicate that a four-quark structure is acceptable for D s J + ( 2317 ) , but it is dificult to explain the very narrow width of the meson X ( 3872 ) .

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