Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2004-08-25
Phys.Rev.Lett.94:182002,2005
Physics
High Energy Physics
High Energy Physics - Experiment
12 pages, 4 figures, submitted to Physical Review Letters
Scientific paper
10.1103/PhysRevLett.94.182002
We report the observation of a near-threshold enhancement in the omega-J/psi invariant mass distribution for exclusive B-->K omega J/psi decays. The results are obtained from a 253 fb-1 data sample that contains 275 million BB-bar meson pairs that were collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The statistical significance of the omega-J/psi mass enhancement is estimated to be greater than 8 sigma.
Choi Sang-Kyung
for the Belle Collaboration
Olsen Stephen Lars
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