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Hidden charm dynamically generated resonances and the e+e- 鈫?J/蠄D炉 , J/蠄D炉reactions

Author:
D. Gamermann and E. Oset  


Journal:
The European Physical Journal A - Hadrons and Nuclei


Issue Date:
2008


Abstract(summary):

We analyze two recent reactions of Belle, producing D炉 and D炉* states that have an enhancement of the invariant D炉 , D炉* mass distribution above threshold, from the point of view that they might be indicative of the existence of a hidden charm scalar and an axial vector meson state below D炉 or D炉* thresholds, respectively. We conclude that the data is compatible with the existing prediction of a hidden charm scalar meson with mass around 3700MeV, though other possibilities cannot be discarded. The peak seen in the D炉* spectrum above threshold is, however, unlikely to be due to a threshold enhancement produced by the presence, below threshold, of the hidden charm axial vector meson X(3872) .


Page:
189-194


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