Abstract
We study the processes and using a data sample of recorded by the BABAR detector at the PEP-II asymmetric-energy collider at center-of-mass energies near the (, 3, 4) resonances. We observe the , and resonances produced in two-photon interactions and decaying to , with significances of 18.1, 5.4 and 5.3 standard deviations (including systematic errors), respectively, and report evidence of the decay to this final state. We measure the mass and width in decays, and obtain the values and , where the first uncertainty is statistical and the second is systematic. We measure the two-photon width times branching fraction for the reported resonance signals, and search for the resonance, but no significant signal is observed.
- Received 21 March 2011
DOI:https://doi.org/10.1103/PhysRevD.84.012004
© 2011 American Physical Society