Abstract
We report the observation of a near-threshold enhancement in the invariant mass distribution for exclusive decays. The results are obtained from a data sample that contains pairs that were collected near the resonance with the Belle detector at the KEKB asymmetric energy collider. The statistical significance of the mass enhancement is estimated to be greater than .
- Received 23 December 2004
DOI:https://doi.org/10.1103/PhysRevLett.94.182002
©2005 American Physical Society