Abstract
The decay width and mass of the meson are measured via the decay channel using of data recorded with the BABAR detector in the vicinity of the resonance at the PEP-II asymmetric-energy electron-positron collider. The result for the decay width is . For the mass, a value of is obtained. The mass difference between the and the is measured to be , representing a significant improvement compared to the current world average. The unnatural spin-parity assignment for the meson is confirmed.
5 More- Received 14 March 2011
DOI:https://doi.org/10.1103/PhysRevD.83.072003
© 2011 American Physical Society