Nature of X(3872) from data
Abstract
Properties of the charmonium-like state X(3872) are investigated and its nature is discussed as based on the existing experimental data. In particular, we analyse the new data from Belle and BaBar Collaborations and argue that, while the BaBar data prefer the dynamically generated virtual state in the DD* system, the new Belle data clearly indicate a sizable cc 23P1 component in the X wave function.
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